Which size down pipe?
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Junior User
Joined: Jun 2004
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Which size down pipe?
I am going to get an aftermarket down pipe for my 96 and I was wondering if I should just do the 3" or the 4". My exhaust is only 3 1/2 I believe. I think I am going to get one from Bully dog.
I am leaning towards the 3" just for the ease of installation.
I am leaning towards the 3" just for the ease of installation.
Smokin'
Joined: Nov 2003
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From: Aston
yes, the stock exhaust is 3.5". the 4" dp that you are referring about should not be harder to install than the 3". it would flare out to 4" after it passes the firewall. if you want to keep the stock exhaust pipe, go with the 3" dp and mate it to the 3.5" stock exhaust
New User
Joined: Jan 2006
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From: Chugiak, AK
Originally Posted by 96P_Stroke4x4
yes, the stock exhaust is 3.5". the 4" dp that you are referring about should not be harder to install than the 3". it would flare out to 4" after it passes the firewall. if you want to keep the stock exhaust pipe, go with the 3" dp and mate it to the 3.5" stock exhaust
Good Luck, y'll love the new DP.
-Stouff
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Junior User
Joined: Jun 2004
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The truck had the muffler and cat removed when I bought it, they sectioned in 3" pipe where the two were removed. I had not planned on replacing the whole exhaust system, I am trying to cure high EGT's.
Post Fiend
Joined: Oct 2003
Posts: 5,903
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From: MICHIGAN
Originally Posted by Dwest
I am trying to cure high EGT's.
You can take a hammer and bust all that stuff outta there. The stock muffler is a bit restrictive, I would opt for a Walket Big truck muffler or anything you can see right thru.
Now that you may have dismantled the stock system
you might as well replace the whole thing with as big ($$) as you can get. Future mods to the engine will thank you.
Elder User
Joined: May 2005
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From: Tennesee
Dwest,
Take a look at the MBRP systems their down piep expands to 4.0 inches at 21 inches from the turbo, quicker than anyone I believe!! They are available in aluminized and 409 stainless and will get you the max flow to drop the EGT the most. Call us if you have any questions on it we'll be glad to help you.
Mark @ DPPI
Take a look at the MBRP systems their down piep expands to 4.0 inches at 21 inches from the turbo, quicker than anyone I believe!! They are available in aluminized and 409 stainless and will get you the max flow to drop the EGT the most. Call us if you have any questions on it we'll be glad to help you.
Mark @ DPPI
