stack exhaust
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Senior User
Joined: Jun 2012
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stack exhaust
I really want to do this. I was going to up grade to 4 or 5 inch exhaust anyway, but i really want to do a single stack. I assume i can just 90 it at the bed and up through a hole i cut. I want to also get a bigger down pipe. What are you guys runnin out there? 
Junior User
Joined: Sep 2012
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I don't know how many other women I speak for, but for me personally, a stack exhaust is mentally filed in the same category as truck-nuts.
Depending on who your target audience is, a stack exhaust can seriously detract from your image of credibility.
Depending on who your target audience is, a stack exhaust can seriously detract from your image of credibility.
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But it's a puller and not a DD
Josh
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From: Virginia beach, VA
Just stick with a 3.5" downpipe, some people have trouble with clearance on a 4". Also I woudn't go bigger than 6" or 7" on the stack, starts to look ridiculous after that.
I had a stack on my last truck and got tired of the noise, but it was a cummins so it was much louder than a 6.0. I'm kind of debating a stack on this truck as well, since I can't get it to be loud from inside no matter what I do. I have a side exit now and its still quiet unless I floor it.
I had a stack on my last truck and got tired of the noise, but it was a cummins so it was much louder than a 6.0. I'm kind of debating a stack on this truck as well, since I can't get it to be loud from inside no matter what I do. I have a side exit now and its still quiet unless I floor it.
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Elder User
Joined: Apr 2012
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helps if you have a mullet and frequent wal mart parking lots....
*did i say that out loud?*
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Senior User
Joined: Jun 2010
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From: Pennsylvania
It's your truck man, do what makes you happy. Some hate stacks others love them, I personally love'em. They look awesome, sound awesome in my opinion. I have to say though I don't quite get the single stack, go for dual. I took my Grand Rock 4" with 5" Aussie stacks off my 7.3. Got a 3.5" down pipe for the 6.0, after reading about others having clearance/installation issues with a 4" downpipe. Honestly, I didn't install it yet on the 6.0 cause I'm waiting until I have the bed liner done before putting in the Y pipe, hopefully in the next couple weeks.
Fleet Mechanic
Joined: Jan 2007
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I've been (somewhat painfully) on the fence on this for years...
I've seen some that actually look good. I've seen some that look like absolute s***. To me, the ones that are really tall are stupid. Bent tips (bull hauler stacks) look stupid. Thin pipe (3-inch) looks stupid. Straight 5-inch pipe with a slash cut that just BARELY clears the top of the cab is what usually looks the least idiotic.
I've toyed with the idea of doing this myself, but I'd have to part with my R-K toolbox, and that's just not gonna happen. And if I move it back to accommodate stacks, the bed becomes even more useless. *sigh*
The funny thing is that Kenworth and Navistar use mufflers on the class-8 rigs that have the inlet and outlet on the same end of the can. With a little work, you could replace the factory muffler with one like KW and Navistar use, mounted in the factory location, and have your quiet AND stacks.
-blaine
I've seen some that actually look good. I've seen some that look like absolute s***. To me, the ones that are really tall are stupid. Bent tips (bull hauler stacks) look stupid. Thin pipe (3-inch) looks stupid. Straight 5-inch pipe with a slash cut that just BARELY clears the top of the cab is what usually looks the least idiotic.
I've toyed with the idea of doing this myself, but I'd have to part with my R-K toolbox, and that's just not gonna happen. And if I move it back to accommodate stacks, the bed becomes even more useless. *sigh*
The funny thing is that Kenworth and Navistar use mufflers on the class-8 rigs that have the inlet and outlet on the same end of the can. With a little work, you could replace the factory muffler with one like KW and Navistar use, mounted in the factory location, and have your quiet AND stacks.
-blaine
Posting Guru
Joined: Sep 2009
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From: Virginia beach, VA
I agree (except maybe a 6" stack instead of 5"). One mitre-cut stack on the passenger side is the best looking setup. In fact the only reason I don't have this on my own truck is the fear that some fuddy-duddy would consider not buying my truck in the future because there was a small hole in the bed.
