4" or muffler delete
Thread Starter
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Senior User
Joined: Apr 2008
Posts: 124
Likes: 0
From: Moberly, MO
Steve: 1200 F pre turbo and 900 F post turbo (downpipe, some say a 200 difference but i like it for safety's sake), boost will be around 25 psi, and trans add 80 to 100 F to the ambient air temp with 220 being the absolute highest you should ever go. Thats what ive been told on here and actually wrote it down to remember it
Thanks, I'll be righting them down also, good stuff to know.
Lead Driver
Joined: Jan 2006
Posts: 6,267
Likes: 5
I read somewhere, 99% chance it was HERE, that a muffler delete on stock exhaust does 80% of what a 4" exhaust does for performance/ egt cooling.
So i just went 50$ muffler delete. I may put a chrome tip on one day, but unless you're pushing 600-1000 hp I think the stock exhaust is fine (straightpiped, that is).
So i just went 50$ muffler delete. I may put a chrome tip on one day, but unless you're pushing 600-1000 hp I think the stock exhaust is fine (straightpiped, that is).
Cargo Master
Joined: Apr 2004
Posts: 3,162
Likes: 1
From: Vilonia Arkansas
I read somewhere, 99% chance it was HERE, that a muffler delete on stock exhaust does 80% of what a 4" exhaust does for performance/ egt cooling.
So i just went 50$ muffler delete. I may put a chrome tip on one day, but unless you're pushing 600-1000 hp I think the stock exhaust is fine (straightpiped, that is).
So i just went 50$ muffler delete. I may put a chrome tip on one day, but unless you're pushing 600-1000 hp I think the stock exhaust is fine (straightpiped, that is).
Snowboard season cometh..
Joined: Jan 2006
Posts: 5,406
Likes: 1
From: Gulf Coast of Florida
I live in suburbia and leave VERY early - a muffler will help keep your neighbors from putting a burning bag of poo on your front porch. If you live on a 40+ acre ranch, then whatever goes.
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
Stainless will hold up better than aluminized supposedly, especially if they use a lot of those nasty ice melt chemicals in the winter where you live. I said "supposedly" because that's the hype on stainless, I've never actually run a stainless exhaust to see if it holds up any better than aluminized.
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Thread Starter
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Senior User
Joined: Apr 2008
Posts: 124
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From: Moberly, MO
Sorry bad wording, i've noticed some kits have a 3.5" downpipe others with 4" and some are just replaced from the front side of the muffler and back
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
Stainless will hold up better than aluminized supposedly, especially if they use a lot of those nasty ice melt chemicals in the winter where you live. I said "supposedly" because that's the hype on stainless, I've never actually run a stainless exhaust to see if it holds up any better than aluminized.
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
Huh.... well then I can say that after 9 years and 165K miles the stock SS system on my truck was in good shape, not sure an aluminized system would have made it that long but again I can't speak from experience on that.
dustan- I would (and did) get the 4" turbo back kit, it will help keep your EGT's down.
dustan- I would (and did) get the 4" turbo back kit, it will help keep your EGT's down.
Thread Starter
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Senior User
Joined: Apr 2008
Posts: 124
Likes: 0
From: Moberly, MO
Huh.... well then I can say that after 9 years and 165K miles the stock SS system on my truck was in good shape, not sure an aluminized system would have made it that long but again I can't speak from experience on that.
dustan- I would (and did) get the 4" turbo back kit, it will help keep your EGT's down.
dustan- I would (and did) get the 4" turbo back kit, it will help keep your EGT's down.
Tuned
Joined: Jan 2005
Posts: 305
Likes: 1
From: Delphos, OH
I deleted the muffler after talking with a shop in Chicago about doing pipes. He said he would be glad to sell me the pipes but the stock size on my truck is about 3.5 and to go with a 4 or larger would be pointless unless you are cranking serious h.p. I know a bunch of guys who run chips with muf delete and have no problems with egt's. If you want to keep everything right you should go with intake and exhaust.
My .02