V8 4Runner Header Installation - 4th Gen 4Runner Doug Thorley Headers - THE BEAST!!!
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- Опубліковано 3 жов 2020
- In this video we install Doug Thorley 4-2-1 headers on our 2004 V8 4th gen 4runner. Towards the end of the movie, we do a sound comparison and dyno it. We make at least 37.4 ft-lbs more torque!!! We plan to tow our track miata with this 4runner - so every bit more torque helps. This vehicle has been completely transformed!
We did all of the common bolt-ons at the same time:
Doug Thorley headers installation
Y-Pipe Installation
O2 simulator installation
Gibson catback exhaust installation
Volant air intake
Parts:
Doug Thorley Headers (off road use only): www.urdusa.com/thy-564y-ls-c-...
Y-Pipe: www.urdusa.com/89253-doug-tho...
O2 simulator (off road use only): www.urdusa.com/urd-rear-senso...
Gibson cat-back exhaust:
www.summitracing.com/parts/GI...
New Fastenal engine mount hardware (class 10.9):
www.fastenal.com/products/det...
www.fastenal.com/products/det...
NGK spark plugs:
amzn.to/2Sq4zFr
Rubber splash guards/rain guards:
amzn.to/2SmVgWQ
Milwaukee Cordless Ratchet:
amzn.to/2HSHh9a
Milwaukee 1/2" Impact:
amzn.to/3lgzIYu
BudBuilt Skid Plate (AL, bare metal):
budbuilt.com/Front-Skid-Plate...
Headlights (custom FX-R Bixenon projector retrofit on OEM Toyota headlights):
lightwerkz.net/
Music by Kurtis Tyler (check out his Spotify!): open.spotify.com/artist/5nVCW... - Авто та транспорт
Just a side note that is important to know. Those extra ports in the new exhaust gasket is for the 2UZFE's that has the secondary air pump. They introducted the air pumps on the 2005+ year cars. If you plan on getting aftermarket headers, make sure the headers DO or do NOT have the piping for the air pump. They are built into the new headers. It will depend what year engine you have. As for the gasket it will be the same reguardless if you have the air pump or not.
This is probably the best/ insightful video I’ve seen so far on 4th Gen. Dude, I sure do appreciate you making it.
Thank you. I put a lot into this video and I really appreciate the comment.
@@EnigmaEngineering was this car tuned? Could you do a video on the gas mileage? Was it just headers? Or full exhaust and x pipe. What year is the 4 runner?
@@mikelmarion this would be good to know. And 2005 the horsepower increased a lot with the variable cams.
“Every single new connection leaked a lot” 😅🤣. Brought me back to my high school days when I was learning how to work on cars with my dad. Awesome, honest effort. Every math teacher would approve of your footage because you showed ALL of your work. Thank you so much for the honest detail delivered in laymen’s terms.
Ha ha thanks Nicholas! I try not to skip any steps but keep it interesting at the same time. The brute force method!
Love love LOVE the timer page at the beginning so we can only watch the bits we want to see!! I went straight to the dyno run.
EVERY VIDEO SHOULD HAVE THIS
Your attention to detail is awesome. You always doing things the correct way with no shortcuts. Nice job!
Thanks for the great video! I have the headers and was apprehensive about doing the job but your video boosted my confidence to do it.
Wow..what a great vid. My DT long tubes arrive tomorrow for my GX. This vid got me even more stoked. Thank you for breaking it down so well.
Thank you so much David! You are going to love the headers - good luck with the installation!
Amazing! I'm going to research what this would be like on a 100 series landcruiser. Fantastic breakdown and description of your experience. 👍🏼
Great video! Put together really well. Hope I can do this to my LX470 someday
Are you kidding me, Awesome video. I just got my headers in the mail the other day and I'm super pumped to put them on. Can't believe you uploaded this video now!
Ha ha - yes, perfect timing!! Good luck with the installation!
Awesome video! Super in depth and well made.
I've got a nearly identical 2003 4Runner. Looking forward to doing this one day!
Thank you very much Taylor - it took a lot of filming! When you start the project one day, post up any questions you have
Well done vid man. I have been narrowing my search into my next project car - 3rd gen or v8 4th. This by far is a watchable video, just straight to the point, no stupid intros, no hand held selfie camera fucking monologues, and probs to your attention to use die to clean up bolts.
This is such a great video. I just started following your channel solely because of the 4runner mods. Truly appreciate the help you have provided and keep the videos coming 🙏
Hi Josh. Thank you so much. Thank you for subbing too. I'll keep putting up 4runner content!
Thank you for the video, now I know what to expect out of my 05. Best video on 4th gen exhaust headers.
Thanks for the comment Bo!
Best 4Runner video maker on UA-cam, thank you. Subscribed. Please please keep them coming.
I enjoyed your video! Great comprehensive coverage 👍
looking forward to more v8 videos.. keep the content coming
Great before and after! I just purchased a 2006 4.7 V8 and I'm getting ready to do some big changes. I cant wait to get all my mods completed!! Thanks for sharing.
Hi Travis. thank you! Good luck and have fun with your build - they are great trucks.
Beware you have TWO motor mount bolts to cut away - not one that is shown in this video
Absolutely loved this video brother well done mayte. You seem like a deadly feller to hang with too man! Good vibes
Thanks for the great video! I been wanting to take this project on and with this video I definitely know I can great job.👍
Thank you for the comment! Any questions on the install, you know where to come
I thought that intermittent *quiet* tick was exhaust leak, then I found out you have it even with the new headers. Nice video, sounds awesome!
Amazing video and guide! Love my fourth gen. I don't have a lift or half the tools but I want to do this now
Awesome video I’ve been waiting for someone to put out a good quality, informative video on a header install, my 04 4 runner has a cracked manifold and i wanted to see how hard it was to change, excellent video.
Thank you for the comment! V8 4runners are worth keeping alive. Good luck with the installation
This was a great video! Now I want to do this to my 2004 V8 Limited 4Runner...Thanks much.
Awesome Video, got my V8 4Runner and yours sounds sick !!
Great video! Thanks so much. Well filmed, good narration and editing. I’ll probably need to do a similar job on my Lexus GX sometime relatively soon. Subscribed.
Thank you so much!
Great job, that sounds really nice.!
Thank you Chittana!
Outstanding video! Now I just need to find a local shop to install this exhaust system. Thanks for the inspiration! And yea I subscribed
You’re pro level!! I came here because my LX470 with 271,000mi is an absolute dog lol. Terribly scared of corrosion because of my experience with swapping out it’s AHC shocks to Landcruiser hardware. This one might be pro only as I’d be working from jackstands. Very nice video!
Wow! Nice detailed job there. Solid looking rig. Thanks for the vid!
Thank you! No problem 🤘
Enigma Engineering : I forgot to ask, where’d you get your front skid plate? Is it a direct bolt on? Mahalo!
@@greenbanana2332 De rien! The skid plate is direct fit, bolt on, from BudBuilt: budbuilt.com/Front-Skid-Plate-2003-2009-V8-4Runner-GX470-Non-KDSS_p_685.html (1/4" AL, bare metal). FYI, the original OEM Toyota part is called the "under cover": P/N: 51405-35140 - who knew!
Sweet vid! Subscribed👍🏼 I have a gx470 with same motor so glad to stumble onto this vid!
Awesome. Thank you for the sub. GX470s are great machines!
Great video! It sounds great as well!
Gonna be doing the headers to my 07 here in a few weeks, which will be interesting because it also has the EGR system that siphons exhaust gas off, so there's a couple extra bolts that are probably gonna suck to try and get to.
This video has me super stoked to do it though, and I'm glad I watched it, because now I'm gonna go buy even more swivel sockets/extensions.
Awesome. Good luck with the installation. I hope the video helps. Glad I didn't have the additional EGR complication. Let us know how it goes :)
Sweet baby Jesus, Ive been searching for this video for months 🙌🏼. My GX 470 has a wicked exhaust manifold leak. I’ve been searching for the best alternative to just replacing the OEM manifolds. I live in NM and we have fairly strict emissions testing. Can’t thank you enough for your super informative and extremely well thought out video.
Did you do it?
How much were your headers? I just picked up a gx470 great suv with some minor imperfections.
Great content. Keep up with V8 4Runner vids and watch your subscriptions increase. I'm subscribing now looking forward to you lifting it next. If you keep those wheels add 1.5" or 2.0" wheel spacers after the 33s it will look much better IMO.
You did a great job on the production of video and installation! I put forged H beam rods and LF4 Forged pistons in my 2UZ-FE making 10.85 to 1 compression ratio plus ported/polished (unshrouded the valves) heads. Found a TRD supercharger and will be installing that also. I have the DT long tube headers like yours and y pipe but I went with Magna Flow exhaust system no cats I believe.
How has this worked long term? I wish you could drive yours at a steady 70 mpg and get an accurate MPG test. Once mine is together I will give you my results but I have 35 inch tires on a 2004 Lexus GX470. I have my Supercharged VVTI 2UZ-FE engine almost complete to be swapped in. It is a lot of work LOL!
Amazing that with 200,000 miles the 4Runner still puts out good numbers
Great video, very meticulous step by step and great tips. My '04 4runner has 140K on the clock and there are no plans of replacing it. I dread the day when the stock manifolds start to crack and the inevitable tick that follows. Finding CA approved CATS and finding a competent welder keeps me up at night.
When you get to that point and if you can't find someone local - let us know and we could help out. We can tig weld and saved the OEM headers so we can make a jig
This with a Mbp tune on top of this is crazy!! I love driving my v8 now even with 37s
Best sounding 2uz I've heard 👌🏼
Great video! Thanks! I have the 2003 v8 and love it but that rust... we should all get on a NHTSA and request e frame recall as they did with 2005+ years of Tundra and Tacoma..
Wow I never thought a 4 Runner could sound this sweet!! Love it! Makes me wanna quit my idea of getting a Jeep for this! 👍🏻
There is nothing like making people in raptors swivel their heads ha ha. Thank you!!
@@EnigmaEngineering so awesome!!!
WELL DONE ! subbed ...thank you for doing all this including the dyno..
Hi Ringer, thank you so much! Nice GX470/miata/s2k!
It sounds awesome! Good job 👍
Thank you Peter!
Great video. Just in time. Thanks man
Hi Jon. Thank you for the comment! Good luck with the job
I am getting ready to do the same job and mine is a little rusty like your. Glad you posted this up!
how'd it go bud? I'm thinking about tackling our 06 4.7.
Very creative way to leak check the exhaust
Thank you so much for this video! I've got the gibson catback but I'm going to need to install headers and y pipe aswell. Not excited at all but I love the car so I'll get it done lmao
No problem!! Good luck with the installation. Budget some breaks in on the install and you'll be alright
I agree with Mountain tactical. Nice job!
Just subscribed love the video bro and yes I’m doing these mods keep them videos coming
I got the exact same rig dude. Same year, but gunmetal gray. I love my truck. I'm going to do the same thing, thank you :)
Keep us updated on tune ! 03 v8 owner here !
Impressive! great work! Thanks for the inspiration.
Thank you Casey! Good luck and have fun
Sounds pretty beastly
The peddle commander really brings these 4th gen 4runners alive and removed the peddle lag and man so much fun in SPort + mode
Great video.... I have 06 with 2 bad cats and looking to replace it with the same headers. This was very helpful..
Thanks Scott. You will not be disappointed in the headers
I have the volant intake on my 2007 looks just like yours sounds good on the v8
The V8 4 Runner sounds beastly with the new headers and exhaust
Great video.
Subbed!🤙🏼
For the studs, soaking in white vinegar for a few hours loosens the rust. Then soaking in pb blaster or wd40 allows you to remove the nut from the stud with a proper vice grip placed strategically and a ratchet. I did the same and just cleaned threads on the stud and nut to ensure a smooth install. The ends you chopped off would have revealed the inverted star tip to thread the studs back in the block... I did this only because my Toyota dealers in my area didnt have any studs and nuts in stock. And they pretty pricey too so reusing the studs and nuts saved about the cost of one header...
Nice Video man! I just bought an 07 4th gen V8 with the typical passenger side exhaust tick, will be doing this over the summer.
Thank you Leese! Good luck and have fun with the install. It will be well worth it
Bro 😎 I can’t imagine how your Miata looks like and that engine work you had on it 😈 after watching you work on that runner 🤜
Super job dude . Thanks
great video man.. a little heat and PB blast goes a long way tho for some of those bolts. wanna do this on mine before it gets too rusty lol
Great idea on removing excess from the bolts
Nice work👌
Mechanically and editing
Thank you so much!
good job, dude. i love my 06 t4r with dt shorties. you'll love the new and improved rig too.
Thanks. Awesome. Did you run your OEM cats on the shorties?
@@EnigmaEngineering correct, factory "first" cats welded inplace where the "second" cats were
That does sound awesome
Sounds great !
Thank you!! It definitely turns some heads. I posted the headers in the description
Great in depth video I had to Subscribe
Thanks so much!
Nice results! You should do an E85 flex fuel conversion if E85 is popular in your area. I'm doing headers on my 4.7 soon as they arrive!
Thats a hell of a job.
My 2003 Toyota 2wd 4Runner 4.7L v8 I believe can only tow 5500lbs and yours is over7k lbs…hmmm… btw awesome videos. Thanks for making this!!!!
Badass bro 🔥
Well done. Not very easy and not cheap but some nice gains that will make you smile. Debating to do the same on my 2007 but man I hate exhaust work and without a lift, I'd probably get a shop to install it for me, making this mod even more expensive.
Thank you Robert. A lot of shops don't even want to quote it from what I have heard. Snapping a stud would suck!
Great video and depth\detail! Man I've got a lift in the garage and normally do most of the work on my 4runner myself but this job is so intimidating to me due to the rusty hardware\bolts that I don't want to do it. I'm in Iowa, ill bring it up to you in Wisconsin lol
I didn't need to put exhaust putty on mine, I did use a breaker bar on all of my u bolts and they seem to sealed fine surprisingly.
Great video I’m doing this next week! Pretty nervous haha but on of my manifolds has a crack so I needs to be done
Thanks. Good luck with the install; let us know how it goes!
Great video....just upgraded my o6 sport from headers through tailpipe with thorley and Gibson. Sweet sound and performance. But what a bear to do. Would not attempt if you don't have access to a lift. Lucky for me I had a buddy with a lift.. mine was harder as the vvti headers have the extra air injection tube. Just have the area 74 o2 simulator to install with no instructions . Hopefully someone out there has a diagram. Black, red, white and yellow....urd is not supplying them anymore. Anyway thanks again!!!!!!
Great job. I''ve got an 08 V8 and also considering doing the DT headers. I would love to get a lift in my garage though...that makes it soooo much easier. haha. Again, great job.
Thank you very much! The headers are awesome - on a new 08 it would be worth the effort. Lol the lift is cheating I know
@@EnigmaEngineering Wish I lived closer....I would be a great friend...I have beer. LMAO
Saw your license plate and the Viking horns in your shop. Must be a BLS fan? If so, we would get along just fine. Rock on!
Hahah one of us!!! Welcome to the club!
Earned my subscription - this video is so well done it actually has me tempted to do my exhaust manifold by myself. Do you see any obvious major obstacles with doing this job on jack stands instead of a lift? Aside from spending a lot of time crawling around on the garage floor on your back...
Great content
Thanks Chan!
Great video! I have an 08 that hopefully will get the shorty headers with new cats at some point soon. The Gibson cat back is great!
One recommendation that might be worth looking into, later model v8s have a plastic intake manifold that beyond saving a few pounds, allegedly makes more power.
Thank you! Let us know how the shorty installation is on the 08! Your intake solution sounds like it might be better than the Volant
@@EnigmaEngineering you can still use the volant intake with the other version if the intake manifold, unless I'm mistaken
Awesome!
I have DT headers on my 4th gen also. Mine are bit different because it is a 2005. Great video!
Thank you darren! What are the differences between the years?
@@EnigmaEngineering my headers have the tubes running along the top of the header for the secondary air injection pump and also i had to weld on my catalytic converters to my headers. They dont have flanges for bolting on like yours do. Id like to build a new y- pipe and exhaust next.
Great video I will be doing this to my two wheel drive V8 4runner!
A 2WD 4runner is a tempting candidate for an LS swap - just sayin
Except the V8 ones never had 2 wheel drive, the V8 always had 4 wheel drive
@@flipperbooch2194 I have a 2wd 4runner?
@@flipperbooch2194 That is incorrect. Most of the V8s were AWD, some were 2WD.
@@flipperbooch2194 My 05' V8 is 2wd
I think 4th gen 4 runners were the best in my opinion. They look nice and stylish and they came in v8 variants. I don’t care how many horsies I have but v8. Yeah, I just think they look really cool. Edit: bro wow the difference you made after the upgrades were insane
im up to 260K on my v8. It has only seen 5 WI winters so the bottom is like new. A little rust converter and LPS3. still waiting for the header issue
Awesome video! Way to go on an actual great thorough video. I have the Thorley's on my 07 Limited and am curious on what Cats/ Y-pipe you used?
Was planning on adding cat back exhaust but I definetley need to start with the new cats.
Thanks for your tips and again GREAT video.
Thank you Aaron! I used the straight-through "long tube" style (not cats) on this. The Y pipe is made by Doug Thorley too. What cats are you currently running?
Thank you not much info on this topic available, appreciate the effort. Subbd
Thank you!
Thank you for video
No problem
In the wiring part of the video it would be best to use splices crimped in with barrel connectors then a better choice of the kind of heat shrink is adhesive lined SCL which isolates the rigged areas from flexing. SCL should always be used over solider joints to reduce flexing of the joints
Great video, holy informative and I don't even have a 4runner
Thank you Chris. I tried to keep it interesting!
Magnet trick was smart 👍
Great vid! How is towing now? Debating about getting one and moding it for a few more ft lbs of torque to help tow a bass boat. That's how I stumbled upon your channel. Def subscribed just to see what's next!
Terrific vid kid.
Just finished headers on my 03, yoir video was helpful to smooth out the process. But I do have to say the dipstick does not go between those pipes. 1 and 2 in means front to back. Needed to hit the furthest outside gap in the pipes and it barely needed tweaking. Retained all the factory holes and no spacer needed.
Good to know, about to put them on my 03 this weekend and was wondering about that. Did you do O2 spacers or simulators to avoid a light?
Haaaa, we are in the same exact boat, I just bought an 07 V8 for towing my Subaru to racing events, quick note...the 4WD can tow 7k but the RWD can tow 7300k. I'll be doing the VSC off mod on my RWD, I hope it works not just on a 4WD. thanks for the vids.
Hey man, this was so interesting to watch. I don’t know much about anything related to mechanics but you made it easy to follow and understand, at least what I can understand haha I have an ‘07 4Runner V8 and it’s inspired me to learn more so that I can do amazing things to the rig in the future. It’s videos like this that fuel the fire! Where did you learn how to work on vehicles and how long have you been doing it?
Hi James - thank you so much for the comment! I really appreciate it. I have been working on cars for 18 years (self taught), but took a 5+ year break for a career - but got back into the garage this past year to stay sane. Most car projects seem daunting in their entirety, but breaking them up into smaller little jobs and keeping a process around critical path "points of no return" makes jobs like the header job manageable. Good luck with your 2007 - keep us posted with your work!