REBEL1100: Coffman's Shorty Exhaust - Installation & sound comparison
Вставка
- Опубліковано 25 лип 2024
- ** UPDATE: July 1, 2021 : Watch the updated video here: • REBEL1100: Coffman's S...
The link below is for the new exhaust that is designed for the Rebel 1100
Coffman's CLASSIC Shorty: coffmansexhaust.com/products/...
Today is Sunday, April 11, 2021, and I'm swapping the exhaust on my new Rebel 1100 today! The factory exhaust doesn't sound bad, but it's big, fugly, and heavy. Skip to the end of the description for clickable time indexes.
I shopped around for aftermarket exhausts for the new Rebel 1100, and couldn't find any straight-back options available yet. Two Brothers Racing and Vance & Hines have made exhausts for the Rebel, but both of those are upswept and may conflict with the right side pannier. I've had a good experience with the Coffman's Shorty exhaust on my Honda CB500F, so I thought it might be perfect for the job.
Installation of the Coffman's slip-on is very simple. Just loosen the two 12mm exhaust clamp bolts at the bottom and the single 12mm exhaust hanger bolt on the top of the Honda muffler. Wiggle and rotate the muffler while pulling upward from the exhaust pipe, and the exhaust will slide off. There is a graphite exhaust gasket at the coupling that might need to be removed from the exhaust pipe if it doesn't come off with the muffler.
Slide the Coffman's muffler onto the exhaust pipe and set your angle/rotation where you want it... just take notice of how close it is in relation to the swingarm. Drill a 9/64" hole through the exhaust pipe for the safety rivet and then secure the new muffler with the pop-rivet. Tighten the stainless steel exhaust clamp at the base of the muffler. Then start the bike and listen to the glorious growl from the Coffman's Shorty exhaust! 👏😉
Time indexes:
0:00 Baseline sound test with factory exhaust
2:42 OEM Honda exhaust ride test
8:02 Removing the factory exhaust
15:44 Open exhaust sound test without muffler 😲
16:40 Installing the Coffman's Shorty, drilling the rivet hole, and securing the clamp
18:00 Coffman's sound test and comparison to OEM Honda exhaust
20:58 Coffman's exhaust ride test
24:50 The Coffman's exhaust note doesn't drone too badly at 70 MPH! 👍
28:01 Tasty exhaust notes on the downshift blips! 😎
29:30 Coffman's exhaust pull-away sound vs the OEM Honda exhaust
30:22 Coffman's exhaust decel blip sound vs the OEM Honda exhaust
31:25 Final thoughts and opinions about the Coffman's Shorty... two thumbs-up! 👍👍
34:13 Rough rear suspension and plans to do the "zip-tie test" on the rear shocks
--
QM
quasimotard@gmail.com
#rebel1100 #cmx1100 #coffmansexhaust
2021 Honda Rebel 1100 DCT
CMX1100
Honda Rebel 1100 exhaust upgrade
Coffman's Classic Shorty exhaust - Авто та транспорт
That sounds awesome! Absolutely love the blips!
Love your Channel. Just got my rebel 1100 and love all the reviews you do on new items. Keep up the great content
Thanks for the feedback! 👍 --QM
Thanks for the reviews you share and the info on the Coffmans exhaust from Amazon.👍
excellent sound and exhaust design, excellent choice!💯
You explain every detail, and I appreciate that. 👍
Thanks for the feedback! Be sure to check out the follow-up videos where I have the updated Coffman's Shorty (made for the Rebel 1100) and the new Coffman's Thunder exhaust:
- Coffman's Shorty (Classic): ua-cam.com/video/xqvVA_YBYLE/v-deo.html
- Coffman's Thunder: ua-cam.com/video/4Y48--_1rms/v-deo.html
Cheers! 😉👍 --QM
Nice! Looking forward to the bar backs video
Got it on! It sounds great! Many thanks for your help QuasiMotard!
Coffman's went on the 1100 today, damn that sounds so good lol
I personally like the sound of the stock exhaust although it does look obnoxious. My son just picked up a 21 Rebel 1100 DCT and I don't think we're going to mess with the exhaust. I do appreciate the amount of time you spent doing the sound checks and camera work. Excellent video ! Thanks
Thanks for the feedback, and congrats to your son on his new Rebel! I would have retained OEM exhaust if it weren't for the suitcase appearance and the limited clearance for a saddlebag on the right side. The original exhaust sounded throaty enough and it was nearly inaudible at freeway speeds over the wind & road noise. I've never been a fan of loud exhausts because I spend so much time commuting and touring on the highways... loud exhausts just detract from the Zen experience of riding.
However, in the case of the Coffman's Shorty, it's only slightly louder than OEM at freeway speeds (4-5K RPM at partial throttle). The noise happens at higher throttle and during down shift blips... oooohhh... those sweet blips! This thing sounds like a NASCAR ripping down the straightaway when you open it up! Cheers! 😉👍 --QM
I agree stock sounds better, its unique, definitely keeping it. I personally think it looks like a double barrel gun, pretty cool.
Oh that sounds so much better, i love that growl!!!
Thanks! I love the howl at higher throttle and RPM's... it has a decidedly V8 sound to it for some reason. I enjoy blasting it down the access roads here in Houston where there are elevated sections of highway next to the road. The raised walls along the sides of the highway echo the sound back toward the bike, and it sounds like NASCAR... it's hard to explain until you hear it. 😉👍 --QM
Regardless of sound that is a huge upgrade in the looks department. It looks so much better with a shorty. Definitely a good decision to go with a shorty 👍🏽👍🏽 And the fact that it sounds a lot better is icing on the cake.
Thanks for the feedback! Be sure to check out the latest video that compares the updated Coffman's Shorty (correct fitment for the Rebel 1100) and the new Coffman's Thunder exhaust: ua-cam.com/video/4Y48--_1rms/v-deo.html . Both of these new slip-on exhausts from Coffman's have blacked-out bolts and exhaust clamps to blend better with the Rebel's looks.
Wyatt Coffman just advised me yesterday that you can also get thes exhausts WITHOUT the red Coffman's nameplate if you request it. You can call them at 707-462-7881 after placing your order online and request the nameplate delete. Cheers! 👍 --QM
Just did this to my 1100 DCT and I love it . Thanks for the advice lol
Glad to help! The Coffman's exhaust is an inexpensive upgrade, and it saves a bit of weight. The original exhaust just didn't match the lines of the bike... looked like an afterthought. Cheers! 👍 --QM
I’ve got the Coffmans shorty on my CBR500R (Baffle out lol). Awesome exhaust 👍🏼. Great video
Thanks for the feedback, Matt! I really enjoy the Coffman's Shorty on my CB500F, so I knew it would sound good on the Rebel 1100. The angle isn't quite perfect for the Rebel, but it still doesn't stick out as far as the original Honda exhaust did. That OEM exhaust was a seriously fugly suitcase. Cheers!
👍 --QM
Great u-turn skills!
I like the sound and how it looks and match the seat, think I finally found my dream bike Husqvarna Nuda 900r, it took me almost a year of searching and testing :)
Husky ain't NEAR the quality of this Honda.
@@filoIII it might be but the Nuda is made in Switzerland and use good parts it looks modest but sounds like the Beast in hell
Diggin the new exhaust. Sounds freakin awesome.
Thanks! It sounds even better in person... the audio recorders do a good job of capturing the sound, but digital compression and UA-cam's streaming make it a bit more dull than in real life. How are you getting along with your new H-D? 👍 --QM
@@QuasiMotard yes I noticed that with my exhaust comparison video. Ooh loving the bike and the roar those exhausts make.
Yeah the passenger foot pegs attach to that bracket. But once you get the rear seat and bags, you won't notice it. Sounds awesome! 🏍👌😃
Thanks, Steve! The exhaust note is aggressive, but not too obnoxious... I'm pleased with the outcome. 👍 --QM
Thanks for sharing your time and efforts. Currently have a CTX700 DCT (38K miles), now looking at NC750x or Rebel 1100 ... DCTs. I ride 85% in manual (paddle) mode. In the twisties using manual stops shifting in mid turn. Thanks , again!
Thanks for the feedback, Bob! I've ridden the CTX700 and 700N DCT a few times, and I nearly purchased one on several occasions. My local dealer had new old-stock units for $3999 and $4699 back in early 2020... stupid cheap... should have snagged one! Here are some of my observations and opinions between the two bikes:
The seating position on the Rebel 1100 is similar, but the footpegs are more mid-mounted than forward like the CTX. This means that the hip/knee position is a bit more cramped for tall or long-legged riders on the Rebel. The factory saddle on the CTX seems to be a bit wider and more comfortable (if memory serves me correctly). I added an AirHawk Cruiser seat cushion to tame the factory seat until some aftermarket options materialize.
The Rebel's DCT manners are better than the CTX... presumably due to newer software and shift points learned from the Africa Twin's setup. I've learned to mitigate the DCT's unexpected downshifting in corners by manually downshifting before leaning into slow, sweeping corners (still in automatic mode, though). I'm a bit surprised that Honda didn't include the Africa Twin's IMU on this bike. The IMU would have permitted lean-sensitive ABS and DCT enhancements (also could have enabled wheelie and launch control). Oh, well... the price was under $10K, so there were trade-offs to be made, I'm sure.
The rear suspension situation is very similar between the Rebel and CTX... somewhat stiff and not much travel to work with. I managed to tame my Rebel's highway manners by increasing my rear spring preload from #3 to #8 (of 19 steps). The Rebel is a bit more thirsty on fuel compared to the CTX, but the engine power is in a completely different league... this thing is a HOOT to ride and crank that throttle open! It's deceptively quick, and I'll catch myself accidentally ripping along at 20+ MPH faster than I realized sometimes.
The Rebel's shortfalls (for now) are its lack of storage and accessories (factory or aftermarket). Not much is available yet for touring or creature comfort upgrades. I have installed the Daytona Aero Visor ( japan.webike.net/products/24620160.html ) and a couple of other minor upgrades, but I'm still jonesing for the OEM rear fender rack and panniers so I can take this thing out for some road trips and motocamping! Cheers! 👍 --QM
@@QuasiMotard Fixed my CTX suspension with a 1 inch rear rise dogbanes. One quick question .... I like to move fore/aft on long day rides. Also, stand up on the pegs. Is it possible to do this on the Rebel?
@@bv3045 The mid-controls on the Rebel don't really allow standing, so floorboards or other upgrades would be needed for that. There isn't any extra saddle room to move forward/backward with the OEM seat... something like a 2-up bench seat might give enough room to scoot around. I've found that the AirHawk gives me enough room to scoot around a bit, or I can adjust the air pressure to give me a different seating position when my butt starts to wear out. I haven't done any long road trips on the Rebel yet, but I'm no stranger to 18-hour days in the saddle on some of my other bikes. 😉👍 --QM
"I'll do a half throttle accel and try not to do a header"... Ha ha ha.... Too funny!.. Great video!!
Thanks for watching and leaving feedback! This was a fun video to make and a great upgrade for the Rebel 1100. You might be interested in these follow-up videos. Coffman's sent me prototypes of their new exhausts that were designed for the Rebel:
Coffman's Shorty (classic): ua-cam.com/video/xqvVA_YBYLE/v-deo.html
Coffman's Thunder (longer): ua-cam.com/video/4Y48--_1rms/v-deo.html
I upgraded my sound and test equipment for those two later videos to include sound pressure readings. I recorded the dBA figures and compared against the OEM exhaust for reference. Cheers! 😉👍 --QM
Good video!!
Thanks for the feedback! 👍 --QM
The back heavy bracket which holds the exhaust also houses the passenger foot pegs.
love itt!!
This will be my first bike should be by next year I'll pick one up I cannot wait 😁😁
Money very well spent there. Sounds wicked!!! 😎👊👊
That's bad ass!
Great choice. I'm with you, needs to be out of the bag area. 👍
He knows whats good trying no exhaust with that laugh at 15:46 😂✌️
I was really tempted to ride it around with an open pipe like that... just get a curved tip for the end to point the exhaust sideways. I'm sure my neighbors would really love me for that! 😉👍 --QM
Miller Custombike in Germany told me they will make an exhaust for the Rebel 1100, I love their looks and sound for the 500, so I am sure it'll be good. They usually come with 3 levels of sound, street legal in Europe (Euro 5 compliant), "racing" which is louder and not street legal, and then no baffle which is loud AF. You can choose end cap looks and finish as well, to suit your style.
That would be cool! Let us know if that works out... I'll be eager to see the final product. Remus sounds fantastic on the Africa Twin 1100, so I'm hoping that they do something for the Rebel. Cheers! 👍 --QM
Awesome sound 👌 but that support for the stock exhaust is also for your passenger pegs I believe and not only that you can also attach a exhaust slider. I'm pretty sure if you add some TRex racing engine gaurds and exhaust slider it will look kick ass.
Thanks for the feedback! I figured out that the passenger peg mounts to that bracket after making the video. I guess the passenger peg kit includes a symmetrical bracket for the left side? I'll find out whenever my parts finally arrive.
I have T-Rex sliders on my Yamaha FZ6R and also on my Honda CB500F... they are great! I'm waiting for SW-Motech and a few other vendors to make engine/crash guards for the new Rebel 1100 so I have some choices. I'm planning to install a set of Denali D4 driving lights and a set of highway pegs on the crash bar. The aftermarket is a bit slow to catch up with new bikes over the past couple of years, so we'll see how long it takes to see more Rebel 1100 accessories hit the market. Cheers! 👍 --QM
@32:25 “I hate backpacks” 🤣. Makes two of us my dude. During my teen and early 20 years on my R6, backpacks were life. As I’ve aged, I’m all about loading all that nonsense on the bike rather than my back. Give me all the saddlebag, trunk, tank bag space you can give me! Speaking of which, have you checked out the Rebel 1100 hard bags from Givi or Shad? T. rex racing has some mounts and Givi hard bags that fit and Shad released their 3p mount for the 1100, which would fit an SH36 (which can fit a full sized helmet). Hard bags are the way to go. Waterproof and lockable 🤘
Your neighbors shouldn’t be too upset, you weren’t out there hooning on the bike. Sounds great btw.
Thanks for the feedback! The Coffman's Shorty sounds fantastic in person! The audio recordings are good, but UA-cam doesn't offer the highest fidelity. Cheers! 😉👍 --QM
Your neighbour just fine....they love you...
that two brothers and vance hines sound good on that also.
Im really wanting the V&H one, but availability in Canada is absolutely garbage. Also the Two Brothers that Burch just put on his bike sounds amazing as well
@@Balabah13 Agreed! That TBR on @LifeOfBurch sounds really good! 👍 --QM
@@QuasiMotard Its difficult, to get that exhaust in Canada right now im looking at nearly $850. And the V&H i cant get at all.
My eyes and ears detected a little more midrange snap.😎
i did this 2 weeks ago when i put a gr moto pipe on my nc750x - no pipe is like open harley i did it for about 3 secs :D - i need more graphite gaskets as i killed mine
Could you get a small bag of some kind and hang it there where that exhaust mount is? Use it for a small storage bag instead of a tank bag or something? Like a cool leather bag to hold some water and gloves and hat.
Hello Kris, how did you got the gas kit out?
Hey man that’s awesome! I had a Coffman on my 500x. Wonder if it would work on my Africa twin 1100 since it’s the same engine as the rebel?
I'm sure that the Coffman's Shorty will fit on the AT just fine. The bend at the neck is the only variable that might need to be sorted out. Coffman's uses the same "can" design across most of their models, so the length and bend of the neck are the main variables. Of course, the orientation of the slash endcap also depends on the rotation of the rest of the muffler.
You should give Coffman's a call (707-462-7881) or email them at info@coffmansexhaust.com to inquire about the Shorty on the AT. I'm sure that they can figure out which bend will work if you send some pictures of the mid-pipe and the offset to the swingarm. They also told me that you can request a nameplate delete (plain can without the red Coffman's logo) if you request it that way. Tell 'em that QuasiMotard sent you! Cheers! 😉👍 --QM
Much better than stock exhaust.
But you really need to upgrade the air filter and re-jet the carbs too!
Thanks! This upgrade was mainly for weight reduction and to reclaim space on the right side for a larger pannier. The Coffman's Shorty sounds fantastic compared to the OEM muffler. The catalytic converter is still present in the exhaust mid-pipe, so this won't drastically affect the engine peformance.
The Rebel 1100 is fuel-injected, so this slip-on muffler alone won't alter the airflow through the engine drastically, which could require a retune or re-flash of the ECU. If I installed a high-flow air filter or modified the intake, then the engine would certainly run lean (hot), and that could cause engine damage. I may re-flash the ECU sometime in the future to try to squeeze a few more HP out of the engine... we'll see! Cheers! 😉👍 --QM
"DOING" 😂😂😂. Best regards from Germany Bavaria! 👍
Greetings from the USA! 😉👍 --QM
I had a '15 500F. Nice little bike. Doesn't handle NEAR as well as my 650 Versys.
Agreed! The Kawi 650 Versys is a great bike... very good handling and smooth, linear power delivery. The CB500F is a bit more efficient and has a lower seat height, so it makes a better commuter, IMHO. Can't go wrong with either bike! 👍 --QM
Hey man! Love the videos. I got the DCT for my first bike and have loved it! Only thing I don't like is the look of the exhaust. I wanted to get a shorty, but heard that these cause issues down the line with engine damage, backfiring, and possible frame damage. Have you had any issues on that other bike you've had the short exhaust on? I really want this bike to last, and have babied it. Let me know what you think! Love the look and sound! Thanks for the videos!
Thanks for the feedback! It's not a good idea to run any engine too lean, and free-flowing exhausts (and intakes) will cause a lean-burn condition due to increasing the airflow without increasing fuel at the same time (to maintain a stoichiometric ratio). Generally speaking, if you only increase the exhaust or the intake (not both at the same time), then you don't drastically increase the flow and end up with an overly lean condition.
As for frame damage, I've never heard of aftermarket exhausts causing frame issues... they are usually smaller and lighter, so it's less likely that they would cause stress-related frame damage. I haven't had any frame or engine problems with aftermarket exhausts on any of my bikes over the decades. Some of the aftermarket exhausts have failed in various ways but didn't cause any damage to the bike. Cheers! 👍 --QM
@@QuasiMotard so for your exhaust that is free flowing, do you have to do anything special to keep it from being too lean? Sorry for all the questions! You've been super helpful.
@@kalebporter9943 No worries, glad to help! There is usually a bit of room in the factory ECU's mapping to prevent the engine from running too lean. Any modern fuel-injection system that has O2 sensors in the exhaust header will allow the ECU to compensate for additional airflow (but usually not more than ~10% deviation). If you add only a free-flowing intake OR exhaust, then you probably aren't altering the total airflow through the motor enough that the factory ECU can't handle it. However, if you alter the intake AND the exhaust at the same time, then you might push the factory ECU out of its adjustment range, and that can result in a lean condition that could damage the motor.
I will be flashing the ECU on my Rebel as soon as DynoJet has a map for the PowerVision 3 system. I'll probably take the bike to an authorized DynoJet tuner so we can run the bike on a closed-loop system (wideband O2 sensor) and a dynamometer to dial in the fuel maps more precisely. That will ensure that the motor isn't running too lean and we'll be able to extract the most power possible out of the performance upgrades. Cheers! 👍 --QM
@@QuasiMotard I have the DCT model too, and got a shorty on it, and from what you have said, it seems like it will probably be good! I'll look out for any other posts from your videos on the subject! Thanks a billion for the help! Love the series
Great video man :) Please can you tell me your User Mode settings to take out the aggressive downshifts. I've even switched to Rain Mode but I am still getting them when doing 90 degree turns at slow speed ! Thanks
Thanks for the feedback! My user mode is set as follows:
- Power: 3 (high)
- Traction: 1 (low)
- Engine Braking: 2 (mid)
- DCT shifts: 1 (low)
Those settings seem to work best for my normal cruising around town and highway touring. The unexpected downshifts are minimized when riding on those settings because the DCT mode is set for its lowest shift points. I still downshift manually with the triggers before entering slow, sweeping corners (e.g., highway underpass u-turns, etc). When I'm riding harder or need to terrorize traffic, I'll switch to "sport" mode for a few minutes and then switch back to "user" or "standard". Cheers! 😉👍 --QM
@@QuasiMotard Thanks man that is really helpful can't wait to try it out. I often downshift too for fast corners - great fun. I love the DCT apart from when it downshifts from 2 to 1 when I am midturn when doing slow 90 degree manouvers. I can't seem to stop this so I either slow right down to get into first before turning, or I turn the corner quicker than I like while still in second gear to prevent it changing down mid turn.
Thank you for fhe video. Really helpful.
What do you think of the noise? I cant decide if I want the Rebel 1100 or a Triumph Street Twin. Triumph are known for that incredible noise and im dubious if the rebel will sound as good
Triumphs don’t sounds that good stock but you can add an x-pipe and it will make it growl deeper. With the rebel, slip on won’t do much so we will have to wait for a full system to see. But as far as I think, 1100 cc will sound bold with a full exhaust.
The bar holding the top of the stock exhaust, I left on there, it holds the passenger foot pegs and my girlfriend rides with me. But I love this exhaust
have you tried the royal enfield himalayan yet? been looking at them after seeing shawn smoaks riding his. things geared like a tractor climbing hills.
Not yet! I was really amped up to ride the Himalayan when it was first released, but then I heard about the transmission problems and quality control issues. Apparently, they have resolved those early issue and the bikes are much more reliable now. That might be the eventual replacement for my Yamaha XT250... can't decide between that or the Honda CRF300L. 👍 --QM
Did it move the power band at all? I know with my striker the drag pipe took away a little low end grunt.
i know this is after the fact, but for future you should get like one of those portable car ports or a portable tent, i got one from walmart just for that when i work on my bike or the car, they aren't that expensive, 😀👍
I really should do that... or at least move under the gazebo on the patio! I usually work in the garage when I'm not recording, but I don't like to show my messy garage on camera. 🤣👍 --QM
I like it a lott ! It is the dogs as we say ....
Appreciate your videos, Quas. I wonder if there is a union that could change the angle of the available Coffman so that a straight back angle can be had. Heard of any such thing? I have no fabricating ability in my retirement community in FL. So, if anyone is aware of a patch for the Coffman, I'd be grateful for the info/source, etc. Thanks
Thanks for the feedback, Will! Stay tuned for some new videos about the Coffman's exhaust coming in the next couple of days. I am working with Coffman's on a prototype exhaust, and I'll be installing that today or tomorrow! It is the same unit with a different bend and the end cap oriented correctly. We'll see how it turns out very soon! Cheers! 😉👍 --QM
I digging the bike think about getting me an Honda Rebel 1100 with that Coffman's exhaust cause the stock exhaust sounded wack they should of put a real exhaust on that bike to make it sound more manly compared to the stock sounding whimpy but yeah cool ass bike ..are there alot of accessories part for that type of bike....
Awesome review!! Does this exhaust have a catalyst in it? And how does it compare with the 60$ shorty by radiant cycles (which can be paired with a cheap/$15 40x40mm baffle catalyst)?
No, this exhaust is just a slip-on muffler. The Rebel 1100's catalyst is contained in the collector forward of the exhaust (as far as I can determine), so the change to the bike's emissions system isn't a factor. 👍 --QM
@@QuasiMotard you even answered my follow-up question beforehand lol. thank you and happy riding! (the Coffman's sounds great, but I think I'll be waiting for the straight twin exhaust from Gem)
I'll check out Gem to see how their system looks. Thx for the tip! 😉👍 --QM
That would be awesome if Flowmaster makes motorcycle Mufflers that would be awesome totally different
Very nice I dont know what bike to choose Rebell 1100 or Dorso Duro 900
Totally 2 different bikes that Dorsoduro is. Look at the Rebel 1100 versus Indian Scout Bobber. Pretty much the same market, engine size and weight.
Agreed! I was looking hard at the Indian Scout Bobber, but the Honda won out with its modern electronics and rock-solid 1100 Africa Twin motor. The thing that really concerned me about the Scout Bobber was the measly 2.0" of rear suspension travel... that must be really rough riding around Houston's rippled, pothole infested roads. I haven't ridden the Scout Bobber to make an informed opinion, but I can't imagine that the rear suspension would suit my needs for commuting and touring. The Rebel 1100 certainly isn't an ideal tourer with its rough rear shocks, but 3.7" of travel vs 2.0" is a significant difference.
I still might pick up a used Scout Bobber sometime in the next couple of years. That is one good looking machine! Cheers! 👍 --QM
hi @QuasiMotard! I really want to swap out my exhaust for something shorter (saddlebags eventually!) but wanted your honest opinion on whether I should go with this Coffman exhaust you bought (is it a safe one to keep on for many years) or would you recommend waiting for aftermarket to catch up? Thanks and love your content!
I don't see any reason why this Coffman's Shorty can't be a permanent upgrade. I plan to leave it on my Rebel semi-permanently, or at least until I see alternatives from Akrapovič or Remus are available for comparison (the OEM exhaust is definitely not going back on the bike!). Those exhausts will obviously be MUCH more expensive (probably in the $600-900 USD range), so it will be a calculated decision based on looks, weight, and sound levels. If you rotate the Coffman's just slightly more upward than I did in this installation, then the bend at the base of the canister should bring it in closer to the bike just a bit. In any case, it still doesn't stick out any further than the factory exhaust... it's about 1.5 inches narrower overall.
I am planning to do a follow-up video with a good SPL meter to get more scientific results. Several viewers/owners have inquired about the dB measurements because of local restrictions. I will record that quick video with dB readings and dedicated audio just like this one, but I will also find a way to post the high-quality audio files outside of YT. The audio compression in YT's videos limits the audio steam to 126 Kb/sec AAC format, and there is additional loss due to the re-compression of my original files (320 kbps AAC). Cheers! 👍 --QM
@@QuasiMotard Thanks for taking the time to respond! I'll definitely keep an eye out for that as I'm about ready to pull the trigger on that Coffman exhaust. Cheers!
@@exoneer6036 If you haven't purchased the Coffman's Shorty exhaust yet, then wait for a bit! I spoke with them on the phone earlier this week, and they are making modifications to the Rebel 300/500 exhaust to adjust the angle to fit the 1100 better. I'll be hacking mine to rotating the body about 90 degrees (and rotating the endcap to maintain an outward flare), and then I'll take pictures and send to Coffman's. They said that they can make the required changes very quickly (e.g., new endcap direction, placement of the Coffman's logo plate, etc). I'll keep everyone updated on that progress as it unfolds. Cheers! 👍 --QM
@@QuasiMotard thanks for the update! I'll keep an eye out for it 😎👍
I just released the second video with a new Coffman's Shorty, and I included audio and dB readings: ua-cam.com/video/xqvVA_YBYLE/v-deo.html . I hope that helps with your shopping! Cheers! 👍 --QM
I have to say it again. When I hear your voice it reminds me of the actor Nick Offerman ! Please like if you agree 🤣
I wish Honda would do the turn signals like the Sporties. One on each side.
That’s the most stupid design
Me to an a nice display layout to it I think
You should check out the pipe "Life of Burch" put on his Rebel a couple ofdays ago. I would be interested what you think of it.
I'm already a subscriber on his channel... he does great stuff! I chatted with him about his cheap exhaust that he tried several weeks ago, and he was interested in hearing the Coffman's Shorty... so we'll be reviewing each others' sound. Cheers! 😉👍 --QM
The one he used sounds fantastic, but it blocks using a saddle bag, which is a big pass for me. I'd rather use the ugly stock one than not be able to use a saddle bag.
Are you thinking about getting the cowling for the headlight?
I was considering the Honda headlight cowl, but I got tired of waiting for the Honda accessories... we're looking at mid-July before we receive our orders... ouch! So, I just installed a Daytona Aero Visor ( japan.webike.net/products/24620160.html ) instead. It's not much of a windscreen, but it seems to break up the wind pressure on my chest a little bit. I'm still shopping for a proper windscreen that can do some touring duties. Cheers! 👍 --QM
Whats the difference between the coffman one and the Shorty GP exhaust? You can get a baffle to fit into the shorty gp as well.
The Shorty GP from Radiant (?) is a decent budget option. I know two Rebel owners who have installed those and liked them initially, but the build quality isn't very good. They aren't made from high-quality metals, and they reportedly rust and degrade quickly.
The Coffman's exhausts are constructed entirely from heavy-gauge stainless steel, and they are ceramic coated for extra durability. They are also completely rebuildable. You can repack the sound batting and o-rings whenever those wear out. The body and internal baffle are nearly indestructable stainless steel, so they should outlast the motorcycle. Cheers! 😉👍 --QM
Were you able to get that bracket off without too much trouble and were there bolt holes left in the bike?
No, I didn't remove the exhaust bracket because it's also the passenger footpeg bracket. I had the battery box out of there recently when I installed the passenger peg set, and it looks like that right bracket is removable. Two 8mm hex bolts secure each of the brackets to the inside of the frame rail. So, I don't see any problem in removing the right side if needed. Cheers! 👍 --QM
Did you ever figure out how to remove that big aluminum piece that the stock muffler is connected? Was it something under the seat/battery that you had to remove? Any video on that?
That bracket on the right side is dual purpose: it's an exhaust hangar bracket and also the passenger footpeg mount. I installed the passenger seat and footpeg kit shortly after this video, so I didn't remove that bracket. The passenger peg kit comes with a matching (reversed) bracket for the left side of the bike, so it's a symmetrical arrangement.
The left bracket attaches to the rear subframe under the seat . You need to remove the battery box to access the bolts in the tail section. Each peg bracket is secured by two large bolts (8mm or 10mm hex, can't remember), and they can be removed completely if you don't want them on the bike.
However... VERY IMPORTANT... you MUST replace the bolts in the subframe even if the brackets are removed. DO NOT leave those bolt holes open. One of my channel viewers in Canada removed his pegs and brackets completely and didn't replace the bolts. He replied a few months later saying that his rear subframe had twisted a little bit and he couldn't screw the bolts back in. Ooops! Cheers! 😉👍
@@QuasiMotard Thanks so much for the response. I don't plan on adding any passenger pegs so will just remove it. Thanks for the tip on re-adding the bolts though.
So, save money with this or go really cheap route with the $60 Radiant? Or, big bucks for TBR or V&H. Is there any diff in performance? To me they all sound great and save weight.
I'd appreciate comments
All good questions! I haven't purchased any of the other exhausts for the Rebel 1100, so I can't give an educated opinion... yet. I may eventually upgrade to another exhaust if/when Akrapovič or Remus have some straight-back (not upswept) options. I plan to install saddlebags on my bike, so the exhaust angle will be a concern. Cheers! 😉👍 --QM
Ive heard the bike runs super lean, have you needed to retune the engine now with the new exhaust?
Most of the newer Euro-4 and Euro-5 compliant bikes run lean by default. I haven't noticed any problems with my bike since the exhaust was changed (e.g., no excessive decel pops or backfiring). However, I do plan to tune the bike with my Dynojet PowerVision 3 when the licenses and maps are available. I'll most likely take it to an authorized Dynojet shop to put it on a dyno for some real load testing instead of just going with a pre-packaged map. Hopefully, we will also be able to remove the 99-100 MPH speed limiter! 👍 --QM
How did you remove that graphite gasket? I just took my muffler off but that remained on. Any help would be greatly appreciated man!
Luckily, the gasket stayed attached inside my OEM muffler's flange and NOT on the exhaust pipe. If the gasket is stuck on your pipe, you might try using a dull knife to gently pry the gasket rearward bit by bit (a little at the top, then bottom, repeat).
If you're trying to remove the gasket without any damage (to reuse it), then you might also try using ice or "canned air" upside down to quick-chill the exhaust flange near the gasket. The thermal contraction of the pipe might give you a few thousandths of an inch clearance to twist and slide the gasket off of the pipe. Using rubber or nitrile gloves to help grip the gasket can also help to twist it around. Good luck! 😉👍 --QM
Will anyone make an exhaust that is more straight back or a collar that could change the outward and upward angle of something like like the Coffman? I'd like matching panniers on my 1100 and less exhaust in a passengers face.
I'm waiting for the same thing. It seems like the only aftermarket exhaust options for the Rebel 1100 right now are from Two Brothers Racing and Vance & Hines. Both of those options are upswept, so they might interfere with the right side pannier. I plan to have panniers on my bike for road trips, so those exhausts won't work for me.
I'm waiting to see if either Akrapovič or Remus make an exhaust for the Rebel 1100... they already have products for the Africa Twin 1100, and it uses the same engine. If they do make exhausts for the Rebel, then I hope they have a straight-back option, or at least not angled too much upward. Cheers! 👍 --QM
Is there any way to remove the bracket the old exhaust bolted to?
Yes, the bracket on the right side can be removed from the frame (two bolts behind the battery box). However, that bracket is also holds the passenger peg, so I left it on the bike. The passenger seat & footpeg kit includes the matching bracket for the left side and the two folding footpegs.
Note: if you DO remove the right bracket, then be sure to put the two bolts back into the frame to prevent the rear subframe from twisting and becoming misaligned. A few of my channel viewers have mentioned that they had that problem afterwards and they couldn't get the bolts back in a few months later. Cheers! 😉👍 --QM
Are you able to put the motorcycle in neutral while riding (to rev the engine)?
No... the DCT won't allow you to shift from "D" to neutral until the bike is stopped. I wish that Honda had allowed the neutral function in the DCT like Porsche and BMW have... where you can pull in both levers at the same time to disengage both clutch packs. That would be fun for rev bombs under bridges or clutch-up wheelies. 👍 --QM
Hi, i've got my Rebel 1100 ordered and i'm in the market for a new slip on, is there any chance you know what the decibel (dB) readout. We have restrictions in Europe
I don't have a dB meter right now, but I was planning to order one soon. If you can get the testing standard (i.e. sampling distance, engine RPM, etc), then I'll see if I can take some detailed readings for you. 👍 --QM
I just released the second video with a new Coffman's Shorty, and I included audio and dB readings: ua-cam.com/video/xqvVA_YBYLE/v-deo.html . I hope that helps with your shopping! Cheers! 👍 --QM
Are you able to put the coffman on with just the clamp?
You could install the Coffman's shorty using only the clamp, but it wouldn't be secured properly. Thermal expansion can cause the muffler to expand and contract relative to the headpipe, so it might literally blow off of the bike under the right conditions. The rivet sets it in place to be sure that the clamp won't allow it to back out. Cheers! 😉👍 --QM
I just bought the same exhaust. Though, I'm going to wait to put it on because the honda exhaust is a like a guard. When I last crashed into a curb, it saved my back end. I don't care if that ugly exhaust gets all scuffed up :) I just installed my crash bars. It just makes me feel better with my investment while practicing to ride. Thanks for the great video. Oh quick question, do you have to put the rivet in? Or can you just tighten it down.
Definitely drill the hole and install the rivet! That is a safety measure to ensure that the muffler doesn't go flying off if the exhaust clamp loosens up over time. I have checked the clamp a few times and found that backed out slightly, so I cranked it down again. 😉👍 --QM
@@QuasiMotard Good to know! Can you tell me what rivet tool you used?
I have a cheap rivet gun from Harbor Freight ($15) that has multiple die sizes. If I remember correctly, the drill bit was 9/64". Drilling and setting the rivet is quick and easy after you clock the exhaust to the correct angle.
Just be sure that it's not too close to the swingarm. I left about 1/2" gap with the swingarm fully extended. I checked by tilting the bike onto the side stand and lifting the rear wheel off the ground slightly (full extension like topping over a rise). Cheers! 😉👍 --QM
@@QuasiMotard Thank you so much for explaining this in depth. I appreciate it!
Any noticeable power loss from the new exhaust or will you get it re tuned? I picked up my 1100 today
Congrats on your new Rebel 1100! I haven't noticed any performance difference at all... not better or worse... just a much better exhaust note. The intake hasn't been changed, and the catalytic converter is still in the midpipe... so just changing the exhaust shouldn't drastically change the AFR or result in an overly lean condition.
However, I am still planning to do a proper flash tune on the Rebel later this year, and I'll rent some time on a DynoJet dyno to do it properly. I'll be sure to post the results with the community (maybe even share the custom map).
I'm also working with Coffman's Exhaust to develop an exhaust that's designed for the Rebel 1100 with the proper bend and angles. That collaboration is underway, and we should have those videos coming next week. Cheers! 😉👍 --QM
@@QuasiMotard sounds like I better wait then
@@matteckert7541 Yep! I'd wait for the new exhaust from Coffman's. We will have the details worked out early next week. Coffman's said that they can produce this new version very quickly for new Rebel 1100 orders. They are based here in the USA, so their production is local instead of outsourced to other countries... that's awesome! 😉👍 --QM
@@QuasiMotard how's the testing going?
@@JohnBarrins I haven't done anything with the tuning yet, but Coffman's has reached out to me to help make an exhaust for the Rebel 1100! They shipped a prototype to me last Thursday, so it should arrive Monday or Tuesday. The new muffler will have the correct bend (we hope), and the Coffman's logo and the exhaust tip have been rotated to the correct angle relative to the muffler's new position. I will fit that exhaust and take a quick video for Coffman's to review first, and then I'll post the results for everyone to see.
As for the engine tuning, that will be on hold until after I return in late July from my trip around the USA for the Scooter Cannonball Run. I will be talking with DynoJet first thing Monday morning regarding an ECU cable and a tuning license for the PowerVision 3 on my Super Cub, so I will also inquire about the Rebel 1100 to see if they have anything available for that yet. I"ll be sure to keep everyone posted on the progress. Cheers! 👍 --QM
I'm trying to put the same exhaust, but it won't go all the way down. I really want to hammer it, but I don't want to damage it. What would you suggest.
The Coffman's Shorty should slide down flush to the extruded flange/ring on the exhaust pipe. If it won't slide down far enough, then you might try using a wide flat piece of metal (flat file or a wood chisel) to gently widen the slit on the opening of the exhaust to give a bit more clearance. Otherwise, just twisting back and forth while gently tapping the end with a rubber mallet should do the trick. 😉👍 --QM
@@QuasiMotard I think I'm going to try twisting back and fourth with a rubber mallet. It's just an inch off...Thanks for your help!
Coffman's makes an exhaust for the Rebel 300 & 500. Wouldn't those fit as well?
It's possible, but I haven't verified part numbers or reached out to Coffman's for verification. They might be the same part? I decided to get the unit for the 500F/X just in case it didn't work out on the Rebel 1100... then I could just swap it to my other bike. 👍 --QM
@@QuasiMotard I did reach out to Coffman's. They don't like the angle and want to make a muffler specifically for the 1100. They're looking for a bike in California for measurements.
@@SoHoundDawg That's great news! I also sent them an email this evening regarding an exhaust for the Rebel 1100. I'll see if I can get a prototype or early production sample to test on the channel. We'll see how it goes! Cheers! 👍 --QM
How’s the bike with vibration while driving vs a V twin ?
The Rebel 1100's 270° crankshaft makes it feel very similar to a v-twin. Honda intentionally made this engine feel "lumpy" with the crankshaft timing and also with uneven cam profiles for each cylinder (volumetric efficiency is different for each cylinder, each tuned independently for low & high RPM).
The engine and handlebars vibrate quite a bit from idle through ~2500 RPM, but it smooths out a lot at higher RPM's. I don't notice any excessive buzz in the grips or footpegs at freeway speeds... at least compared to other similar machines. It's certainly not GoldWing smooth, but it's tolerable for 3-4 hour rides without going totally numb. 😉👍 --QM
@@QuasiMotard perfect and informative reply ! Thanks 👏🏻👏🏻
Do you need a remap for this exhaust?
No, this is a slip-on muffler that retains the factory catalytic converter, so it doesn't drastically alter the engine's airflow. I have 6000+ miles on this setup now with no adverse affects on power or fuel economy. The sound is much better, and the bike shed ~10 pounds in the process.
You might be interested in the follow-up video here with the production Shorty and a SPL test: ua-cam.com/video/xqvVA_YBYLE/v-deo.html . The next video is a comparison between the Coffman's Shorty and the Thunder exhausts: ua-cam.com/video/4Y48--_1rms/v-deo.html .
If an intake modification (e.g., K&N air filter or other airbox mod) is also done in conjunction with these exhausts, then the engine might run too lean (hot). That would probably require a reflash of the ECU to compensate for the added airflow. Cheers! 😉👍 --QM
Aren't you concerned that it'll be too restrictive, since it's designed for a bike with much less power?
Not really... I'm sure that the Coffman's is less restrictive than the OEM exhaust, but I'd need to put them on a flow bench to be absolutely sure. The Coffman's is basically a straight-thru design with a small V-diverter behind the spark arrestor screen. I might eventually upgrade to a Remus or Akrapovič exhaust whenever they become available. I can reuse this one on my CB500X if I go that route. Cheers! 👍 --QM
How's this growl compared to the SV650?
I haven't owned a Suzuki SV650, so I can't compare the exhaust note. The SV650 has a 90° v-twin, and the Rebel 1100 has a parallel twin... both engines have a 270° firing order (as far as I understand). The exhaust note from the Rebel's 270° parallel-twin isn't quite the same as a V-twin, but it's close. Honda has also reportedly done some volumetric trickery with the camshaft timing on the Rebel's engine so each of the cylinders have different power characteristics at different RPM ranges: www.cycleworld.com/story/bikes/honda-rebel-1100-first-look/ . 👍 --QM
What gopro is this???
I used my GoPro Hero 7 Black for the helmet camera, and my Hero 8 Black for the ground & flyby shots. I recorded most of the action shots with my GoPro MAX 360 camera, but I didn't edit or use those yet (too much editing and post-production work). Cheers! 😉👍 --QM
How do I take the big exhaust bracket off?
The exhaust bracket is also the right passenger footpeg. You can remove the seat and battery box to get to it. There are two 8mm (?) hex-head bolts that hold that bracket onto the inner frame rail. Note that there will be an open space if you remove it, so you might want to cut a piece of black ABS plastic to act as a filler (just bolt it into the same holes). Cheers! 😉👍 --QM
@@QuasiMotard I appreciate you, I think I'm going to leave it on for when I get a passenger seat
did you take spl measurements?
I didn't have a dB meter for this video, but I bought good one for the follow-up video here: ua-cam.com/video/xqvVA_YBYLE/v-deo.html . Cheers! 😉👍 --QM
@@QuasiMotard perfect! thanks!
Subscribed! Link please, d=).
no new videos?
Howdy, John! I've been swamped with work for a few weeks, but I do have a few videos about halfway cooked. I'm hoping to finish those and upload them this week. My big Super Cub trip is coming up fast (July 1), so I need to get all of my editing done before I hit the road! Cheers! 😉👍 --QM
That would look awesome without the fender.
You are lucky. this will never go here in Germany with euro 5 :-(
but a little tip. BMC Airfilter and NGK iridium spark plugs :-)
I pointed mine down and it didn’t enter fear with any saddlebags or smoke in passenger face
Which one did you point downward: the Coffman's Shorty downward or the factory exhaust? Do you have any problems with ground clearance while turning right?
Do the cover seat help ? Cuz the original the ass hurts 😂😂
Sound like a real cruiser! My got the GEM-CLASSY
Yes, the AirHawk Cruiser seat pad makes a huge difference for long trips. I've done several cross-country trips on the Rebel, but they wouldn't have been possible without that seat pad. 😉👍 --QM
Sounds more like dirthbike then a cruiser.You like it what matters....me like deeper tone less rattle
I'm torn between the sound of this one and the two brothers racing exhaust
Two Brothers is much higher quality.
Have you purchased or seen the TBR exhaust? I was considering the TBR and the Vance & Hines, but didn't like the upswept angle.
I'm just curious about your comment on the TBR's quality because the fit & finish on the TBR S1R that I had on my Ryker wasn't very good. The end cap was crooked, and the overall finish wasn't that great. It literally ate (self-destructed) the noise baffle in under 3 hours. I took it off and reverted to the factory Can-Am exhaust only because it was too loud for my preferences. If it hadn't eaten its noise baffle, then I might have left it on the Ryker. --QM
@@QuasiMotard That's interesting. Did you contact TBR about the quality issues? In my experience they have good pieces and great customer service. But no, I do not have any personal experience with their Rebel exhaust.
@@TheImtoomuch I sent a couple of emails regarding the blown noise baffle, but didn't hear back. I've been busy and never tried to follow-up on the issue since then. That TBR exhaust is still sitting in a box in my garage just waiting for the next step... either find a steel baffle that won't melt ( ua-cam.com/video/qEQixHbgehQ/v-deo.html ), or I'll just sell it to someone that likes it LOUD! 😉👍 --QM
how about the top speed?
The top speed for the Rebel 1100 is electronically-limited at 100 MPH for the USA models (possibly for all markets). The new exhaust doesn't change that, so a re-flash of the ECU will be necessary to remove the speed limiter. --QM
Where’s the hunter cub?
It's still in the stable. I didn't ride it for several weeks because I was waiting on some upgrade parts. I started the tear-down to install some accessories and realized that I didn't have the right pieces, so it sat there waiting patiently. It's back together now and I've been doing small commutes and grocery runs with it.
I have a 4-day motocamping trip series from back in mid-March (pre-upgrades) that I haven't edited or posted yet. We rode about 350-400 miles to Paige, TX, to camp out at the Cottonbowl Speedway and watch the World of Outlaws sprint cars. The little CT125 did OK, but just barely... it really doesn't like highway speeds. I was barely able to maintain 50 MPH most of the time, so I was the slow one in the group by about 10 MPH. It needs a gearing change and a 143cc big-bore kit to wake it up. 👍 --QM
Wow. You’ve been busy. Thought maybe you buying the Honda 1100, you changed your mind about riding the others.
All you need is a stragit pipe, $30 in parts from any autoparts.
Not a fan of the look of the shorty tbh maybe if it wasn’t pointing up. Sounds good though.
Thanks for the feedback! I worked with Coffman's on a prototype exhaust to fit the Rebel 1100 properly: ua-cam.com/video/xqvVA_YBYLE/v-deo.html . That unit has a proper bend and fits the 1100 much better than the original "Shorty" that I tested in this video.
Coffman's has also sent a new exhaust to me to test & review on the channel. The new "Thunder" model is a longer unit that is slightly upswept and it attaches to the rear exhaust hanger bracket like the OEM exhaust. I'll be testing and posting that video soon to show everyone the comparison between the Shorty and the Thunder, and also to show whether the new unit still allows a saddlebag on the right side or not. Cheers! 👍 --QM
Loud pipes saves lives
Bike sounds good with the stock muffler but your right the stock muffler is butt ugly
ANGLE PIPE AT CAGERS SO THEY CAN SMELL YOUR SPEED :D
We didn't go to that range
Trust me... we didn't miss anything except for near-death experiences. There are a bunch o' boobs that shoot there and the RSO's are too lax. I've almost been shot there twice! 😲 --QM
Yammi noob took it to peg scrapping lean angles so it has the ability just about finding your confidence
wash your fukcing hands men. ANYWAYS nice exhaust. As for me personally, I LIKE IT