@foxtrot1551 - The plumbing on this stack kit is 4" under the bed of the truck, so you would order the 3" to 4" reducer, along with the 6" exhaust stack tips you prefer.
thiis is probably a stupid question, but with those kind of stacks, what happends when it rains? like wat happends with all the water that gets into them?
Leprkan, it is well worth the money. I just purchased a dual stack set& it was well worth the money. Even though my silverado isn't a diesel, it sounds great, and seems like it runs better& quicker!! Well worth the money dude!
@kniffriff - these kits will fit your F-150, but you have to go with 4" diameter stack tips so you can maintain sufficient exhaust back-pressure for your gas truck.
@HeadBreaker26 - They are very similar. The Aussie cut has a sharp, almost 45% bend where the tip flares. The bend in the bull hauler's is softer, leaving more of a curve. There's a picture of all the tips on the product page on our website. You can get to the product page by clicking on the link above.
Im pretty sure its cool, last I heard you can go straight pipe because the turbo is considered an emmision control device. I'm doing it and I live in the folsom area where the pigs will ticket you for tinted windows and not coming to a 100% complete stop.
@archeryrox7 - These kits are universal. They will fit in your truck, you'll just need to order an appropriate reducer to fit your exhaust diameter to the 4" flex pipe diameter of these stack kits.
@durkization - It really depends on your equipment and level of confidence. The installation isn't difficult. Anywhere from 2-4 hours is average install time, but some guys do it in an hour and a half, others just enjoy the process and take an entire Saturday installing their kit. After all, anticipation is half the fun!
Steve, these stacks are suitable for most gas engines, particularly the larger V8's. Stick with 4 or 5 inch tips - you want to maintain some exhaust back-pressure.
They won't change the sound, but they will direct some of the exhaust note away from the cab so your ride might be a little quieter inside the truck, but outside it will sound pretty much the same.
@bobbygreenthumb - Universal exhaust stack kits such as those made by Grand Rock will not fit on a DPF-equipped diesel truck. To install the exhaust stack system you would have to make major modifications to the emissions control equipment, automatically voiding your warranty.
1) Stacks are loud. 2) the only stacks you really have to worry about moisture with are the straight cut, which is the flat top stacks. when you turn on your truck it vaporizes any moisture in the pipes. 3)You can't install your own drain valve if you want, it doesn't come with one. And it's not really neccesary.
No, you would have to buy just the tips you wanted and have custom fabrication done for the rest of the exhaust work. All our kits are currently inside the bed only.
The mufflers will make a big difference in sound quality. As far as hp/torque 5 to 10 percent increase depending on what you are driving, and if you have installed a intake and or any other mods.
awesome!!! I've always liked straight stacks better then the ones with a bend... Just wondering if alot of rain and water gets in the straight stacks when parked, Or is that no big deal if so?
would these be suitable for a gas engine application, or should i look into a different kit? i would like the stacks mainly for looks, and i really like the look of the bright chrome ones you guys install in this video.
yes, without the mufflers it is louder. There honestly isn't a huge sound difference. In the video there is a sound clip with and without the mufflers.
@1USMCforlife - Hey Devil Dog, these stacks will work just fine on your Silverado. Just stick with 4" or 5" tips so you can maintain sufficient backpressure.
Depends on which size stacks and what tip style you get. Somewhere from $500-$900 on average. Go to our website and price out a set. Just remember with a gas truck you need to maintain sufficient back pressure, so don't go over 5" stacks.
so does the flex pipe help if your off roading and the bed moves to one side or the other? just curious I off road alot and if I were to get a truck and do this would it damage the exhaust?
+Ryno Armijo The flex pipe would give some movement in the exhaust that would not be there otherwise. If you are planning on off-roading though you will probably want to focusing especially on securing the stack tips.
I have a question. I just orderd 6 inch dual straight cut's stacks with internal muffler's for my 1500 silverado with the 5.3 ltre v-8. I would like to do bullhauler's, and my question is, will bull haulers sound different than that straight cut's?
no it wont rust or it wont get into the engine but if you want to be sure you can get something like coffe plastic can thing that it come in and cut the top and put them on your stacks so water doesnt get in them if you want to be sure.
It depend on the location of your stock muffler. Most likely you will have to remove it. Just figure on cutting and tossing everything in the current exhaust system from about one to two feet forward of where the truck bed starts.
I want to get stacks on my truck, but bed space is crucial to me and im also thinking about putting a dump hoist kit under the stock bed for dumping. Now obviously this interferes with drilling and putting stacks through the bed. So is there any way I can get my stacks to run out of the side of the truck? Just like they do on the International CXT. And if so do you still have to move the cross member? And who can sell me a kit like that?
I have two questions 1,How Much Louder Is It in the Cab with the Stacks, 2,How Will Snow,Ice etc Effect your truck with these stacks. Is there a Drain Valve at all
I live in a state that requires mufflers. For the internal mufflers, can I take them out, and put them back in before I smog it so it can pass smog? Or are they permanantly installed once put inside the stacks?
I had a question about back pressure. I have a 7.3 IDI, non turbo. The current exhaust 3 inch all the way back. Could i just get a reducer from the 6 inch to a 3 inch, and still be alright?
hey do you guys make stack exhaust for gas trucks also? i have a silverado 1500 ls and i wantto put stacks on it, but i cant find them anywhere. plz help me
@ParleysDiesel I have a 2011 dodge 3500 I want stacks but everyone tells me to wait cuz it'll void my warrenty any advise? Is there stacks that won't void warrenty?
because no matter what, they will look good, and done right& properly installed with this kit they will sound good too... I would like a duramax, but I do not haul heavy enough loads to justify spending almost 50,000... My truck is rated for 9,600 lbs towing, and the most I tow at any given time is 6-7,000 lbs. I have seen half ass jobs that look and sound like shit on gas trucks. With this universal kit, it solves this problem. I'm not worried about smokeing, I just want it to look& sound good.
I don't recommend putting stacks on a gas truck. I did it once and boy there were a lot of haters. I even had someone scratch poser into my driver side door. I have no idea why, I just thought they looked cool. People who knew nothing about vehicles even made comments. Either way, haters are going to hate I guess. I have since bought a 3500 Diesel. The stacks get a much more positive response now. Good luck.
I have a few questions. 1 how did that truck get to smoke that much cuz my diesel doesn't 2 right now I don't have a muffler but from the catalyst back is four inch what is best set up for it the aussie or bullhorn
Charles Reed depending on what truck you have will change what you'd want to do to get it to blow smoke. pretty much as a basic though I'd suggest a larger intake and intake manifold, oversized exhaust maybe aftermarket manifolds for that too, a tuner chip(banks makes some good ones), delete muffler, and delete catalytic converter if your state allows it or if you think you can get away with it. if you do all that and it still doesnt smoke... well then I cant help you man. I can tell you now, if you happen to have the ram ecodiesel, good fuckin luck getting it to smoke. I havent seen anyone do that with one yet.
Charles Reed with an 05 duramax just put an oversized exhaust, large air intake, and a tuner on it and you should be able to push plenty of smoke. I would suggest swaping out the exhaust manifold for something more free flowing and while you're in there give her a nice cleaning and if you've got the time and money put a nicer turbo in. past that you dont need anything else to make that truck roll coal. but of course there are a ton of parts that will make it run better, stronger, more efficiently, and for longer, but you'll end up spending enough on after market parts that you could buy a whole new engine if I list out everything and you bought it. just get a new exhaust system with new manifolds, go for something over 4", and the largest intake you can find and afford, leave enough money to get a nice tuner.
@deadmanrip1971 - Your choice. Whichever way fits (with or without the muffler) is how can install the Grand Rock exhaust.
@foxtrot1551 - The plumbing on this stack kit is 4" under the bed of the truck, so you would order the 3" to 4" reducer, along with the 6" exhaust stack tips you prefer.
thiis is probably a stupid question, but with those kind of stacks, what happends when it rains? like wat happends with all the water that gets into them?
Leprkan, it is well worth the money. I just purchased a dual stack set& it was well worth the money. Even though my silverado isn't a diesel, it sounds great, and seems like it runs better& quicker!! Well worth the money dude!
@kniffriff - these kits will fit your F-150, but you have to go with 4" diameter stack tips so you can maintain sufficient exhaust back-pressure for your gas truck.
@HeadBreaker26 - They are very similar. The Aussie cut has a sharp, almost 45% bend where the tip flares. The bend in the bull hauler's is softer, leaving more of a curve. There's a picture of all the tips on the product page on our website. You can get to the product page by clicking on the link above.
Im pretty sure its cool, last I heard you can go straight pipe because the turbo is considered an emmision control device. I'm doing it and I live in the folsom area where the pigs will ticket you for tinted windows and not coming to a 100% complete stop.
Because even if someone doesn't have a diesel you know they wish they did, and because stacks just look sweet. Simple as that.
@archeryrox7 - These kits are universal. They will fit in your truck, you'll just need to order an appropriate reducer to fit your exhaust diameter to the 4" flex pipe diameter of these stack kits.
how do you get the smoke to come out? do you need to do anything special for that to happen?
@durkization - It really depends on your equipment and level of confidence. The installation isn't difficult. Anywhere from 2-4 hours is average install time, but some guys do it in an hour and a half, others just enjoy the process and take an entire Saturday installing their kit. After all, anticipation is half the fun!
i love how it sounds without the muffler but i live in NY and it is required by lay and all of the filters
@megdod209 - If you have a 3.5" exhaust just be sure to add the 3.5" to 4.0" reducer when you order your stack kit.
Steve, these stacks are suitable for most gas engines, particularly the larger V8's. Stick with 4 or 5 inch tips - you want to maintain some exhaust back-pressure.
They won't change the sound, but they will direct some of the exhaust note away from the cab so your ride might be a little quieter inside the truck, but outside it will sound pretty much the same.
@bobbygreenthumb - Universal exhaust stack kits such as those made by Grand Rock will not fit on a DPF-equipped diesel truck. To install the exhaust stack system you would have to make major modifications to the emissions control equipment, automatically voiding your warranty.
1) Stacks are loud.
2) the only stacks you really have to worry about moisture with are the straight cut, which is the flat top stacks. when you turn on your truck it vaporizes any moisture in the pipes.
3)You can't install your own drain valve if you want, it doesn't come with one. And it's not really neccesary.
hey if i do this and it rains will the pipe not rust and water will get into the engine?
Yes, you can put stacks on a Ram 1500 with the 5.7L Hemi. Just stick with 4" or 5" stack tips.
How does rain get out?
is it possible to bracket the stack to the bulkhead so that they don't go through the bed? you look like jared fogle btw
It was a 6 inch hole, because the bottom of the pipes has a Y that has to sit down in the hole, so the hole has to be a bit bigger than the pipes.
They are universal kits, you just have to use a reducer to get the exhaust to fit where you hook the kit up to your stock exhaust.
yes they do, you just need a reducer to make them fit to your stock exhaust
it is possible, you might have to add a piece of pipe to S back to hook up to the kit, but they are definately doable.
No, you would have to buy just the tips you wanted and have custom fabrication done for the rest of the exhaust work. All our kits are currently inside the bed only.
Usually between 600 and 800 dollars depending on size and style that you buy.
The stack kit comes in 4" by default. The only reason you would purchase the reducer is if you had a stock exhaust system of 3" or 3.5".
The mufflers will make a big difference in sound quality. As far as hp/torque 5 to 10 percent increase depending on what you are driving, and if you have installed a intake and or any other mods.
awesome!!! I've always liked straight stacks better then the ones with a bend... Just wondering if alot of rain and water gets in the straight stacks when parked, Or is that no big deal if so?
Without mufflers, we like as much sound as possible.
Yes, you can go back and easily add mufflers later if you feel the need.
would these be suitable for a gas engine application, or should i look into a different kit? i would like the stacks mainly for looks, and i really like the look of the bright chrome ones you guys install in this video.
i like that truck how many inches would you say is that lift and tires?
yes, without the mufflers it is louder. There honestly isn't a huge sound difference. In the video there is a sound clip with and without the mufflers.
sounds nice i have a 2002 gmc diesel i wanna install dual stacks
@1USMCforlife - Hey Devil Dog, these stacks will work just fine on your Silverado. Just stick with 4" or 5" tips so you can maintain sufficient backpressure.
Spray-in liner in there?
Looked tough to cut through lol.
Good step by step walkthrough though.
Depends on which size stacks and what tip style you get. Somewhere from $500-$900 on average. Go to our website and price out a set. Just remember with a gas truck you need to maintain sufficient back pressure, so don't go over 5" stacks.
so does the flex pipe help if your off roading and the bed moves to one side or the other? just curious I off road alot and if I were to get a truck and do this would it damage the exhaust?
+Ryno Armijo The flex pipe would give some movement in the exhaust that would not be there otherwise. If you are planning on off-roading though you will probably want to focusing especially on securing the stack tips.
I have a question. I just orderd 6 inch dual straight cut's stacks with internal muffler's for my 1500 silverado with the 5.3 ltre v-8. I would like to do bullhauler's, and my question is, will bull haulers sound different than that straight cut's?
no it wont rust or it wont get into the engine but if you want to be sure you can get something like coffe plastic can thing that it come in and cut the top and put them on your stacks so water doesnt get in them if you want to be sure.
how can you lower a stack after its been installed?
It depend on the location of your stock muffler. Most likely you will have to remove it. Just figure on cutting and tossing everything in the current exhaust system from about one to two feet forward of where the truck bed starts.
very nice video.. when you installed the stack permently were they with or without mufflers?
I want to get stacks on my truck, but bed space is crucial to me and im also thinking about putting a dump hoist kit under the stock bed for dumping. Now obviously this interferes with drilling and putting stacks through the bed. So is there any way I can get my stacks to run out of the side of the truck? Just like they do on the International CXT. And if so do you still have to move the cross member? And who can sell me a kit like that?
It sounds like what you're needing will have to be custom. you might give grandrock a call and ask if they have the different parts to do that.
so for the whole you cut in the bed is it a 4" hole or a 5" hole.....nice vid!
I have two questions
1,How Much Louder Is It in the Cab with the Stacks,
2,How Will Snow,Ice etc Effect your truck with these stacks.
Is there a Drain Valve at all
I live in a state that requires mufflers. For the internal mufflers, can I take them out, and put them back in before I smog it so it can pass smog? Or are they permanantly installed once put inside the stacks?
What happend if your parked outside and i rains will it ruin the pipes?? Like from water staying in.
I had a question about back pressure. I have a 7.3 IDI, non turbo. The current exhaust 3 inch all the way back. Could i just get a reducer from the 6 inch to a 3 inch, and still be alright?
hey do you guys make stack exhaust for gas trucks also? i have a silverado 1500 ls and i wantto put stacks on it, but i cant find them anywhere. plz help me
Does it have to be a deisel truck to use stacks or does it really matter??
Dakota Pulley it doesn't matter but you mostly see it on diesel trucks so people tend to make fun of them on gas truck
Ok thankyou for the info!!! I appreciate it!
In person you can tell the difference a little better, we had the mic a little too close to the truck for that sound clip.
Would it be possible to modify normal exhaust on a non diesel truck and make it stacked?
Is their ever problems with water getting into the system and rusting it out
at the T joint why is one side longer than the other?
Do you guys have a kit that would fit a 1985 GMC with a 6.5 liter diesel?
pretty sweet, but I would install rain caps, or bend the tips back.
Hey i have 5 inch stacks in my truck how could i get just the internal mufflers from grandrock
do you sell the internal muffler separately or no?
so it is louder with out the internal muffler?
how big should the hole for the y pipe be?
i like how he says optional mufflers!
Lookin good guys!
Do you lose power if you remove the catalyst?
@bobbygreenthumb no because you have to cut a hole n the bed and remove the dpf.
How do you keep water from accumulating inside the pipe?
can u mount the y below the box ?
It's on the right side at the bottom of the options section. The web guys just added it.
@ParleysDiesel I have a 2011 dodge 3500 I want stacks but everyone tells me to wait cuz it'll void my warrenty any advise? Is there stacks that won't void warrenty?
Would the flex pipe be hooked onto the catalytic converter on a gas truck?
can you guys make one to fit a 2005 ford f150 4.6L v8?
could you do this to a 1977 c10 stepside truck?
im just curious, how much would this be to get it done pro?
How would you suggest gettin a 4 inch pipe on a 3 inch downpipe?
@Citadel2010 Thats Kyles truck from G and R diesel... The truck is owned by the guy who is burning out in it... "the tech"
the pipe under the truck is lower than the pipe that comes off the engine, there's no way for water to get to the engine.
Wouldn't it seize up the motor if water got into the pipe?
what lift and tires were on that rig, and 5" stacks?
no welding required?
thx that Helpt a Lot
whats does it roughly cost for this setup?
They are universal kits. They work as long as you have a normal truck bed.
because no matter what, they will look good, and done right& properly installed with this kit they will sound good too... I would like a duramax, but I do not haul heavy enough loads to justify spending almost 50,000... My truck is rated for 9,600 lbs towing, and the most I tow at any given time is 6-7,000 lbs. I have seen half ass jobs that look and sound like shit on gas trucks. With this universal kit, it solves this problem. I'm not worried about smokeing, I just want it to look& sound good.
@Dustpan04347 Truthfully dustin the internal muffler's really don't do anything except act as a soot catch.
I don't recommend putting stacks on a gas truck. I did it once and boy there were a lot of haters. I even had someone scratch poser into my driver side door. I have no idea why, I just thought they looked cool. People who knew nothing about vehicles even made comments. Either way, haters are going to hate I guess. I have since bought a 3500 Diesel. The stacks get a much more positive response now. Good luck.
i would hesitate to attempt this myself
I have a few questions.
1 how did that truck get to smoke that much cuz my diesel doesn't
2 right now I don't have a muffler but from the catalyst back is four inch what is best set up for it the aussie or bullhorn
Charles Reed depending on what truck you have will change what you'd want to do to get it to blow smoke.
pretty much as a basic though I'd suggest a larger intake and intake manifold, oversized exhaust maybe aftermarket manifolds for that too, a tuner chip(banks makes some good ones), delete muffler, and delete catalytic converter if your state allows it or if you think you can get away with it. if you do all that and it still doesnt smoke... well then I cant help you man.
I can tell you now, if you happen to have the ram ecodiesel, good fuckin luck getting it to smoke. I havent seen anyone do that with one yet.
2005 GMC duramax
Charles Reed with an 05 duramax just put an oversized exhaust, large air intake, and a tuner on it and you should be able to push plenty of smoke.
I would suggest swaping out the exhaust manifold for something more free flowing and while you're in there give her a nice cleaning and if you've got the time and money put a nicer turbo in.
past that you dont need anything else to make that truck roll coal.
but of course there are a ton of parts that will make it run better, stronger, more efficiently, and for longer, but you'll end up spending enough on after market parts that you could buy a whole new engine if I list out everything and you bought it.
just get a new exhaust system with new manifolds, go for something over 4", and the largest intake you can find and afford, leave enough money to get a nice tuner.
Cool thank
Ok I've got the edge programer that came with the truck and just straight piped the exhaust
how much would this cost to install?
awesome awesome video!!!
how big are these stacks?
The mufflers make a little bit of a difference.I don't know what it equates out to in decibels.
cool vid
$544.95 shipped for 5" Mitre Cut Stack Tips and the complete stack kit.
Well stacks work on my 96 gmc gas
does that have the cat?
as DolittleMccoy said.. what happends when it rains??