How far can you stretch stainless pipe ?
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From: Springhill, FL
How far can you stretch stainless pipe ? How far can I stretch say a 3" or a 2.5" Stainless pipe ?
I"m collecting the parts for my header install. The problem is my headers have a 3" collector and my exhaust/cats are 2.5".
I cant decide whether to buy some 3" stainless pipe and then try to stretch my h-Pipe to fit it. Or buy some 2.5 and try to stretch it to go over the headers.
What do you think guys ?
I"m collecting the parts for my header install. The problem is my headers have a 3" collector and my exhaust/cats are 2.5".
I cant decide whether to buy some 3" stainless pipe and then try to stretch my h-Pipe to fit it. Or buy some 2.5 and try to stretch it to go over the headers.
What do you think guys ?
TECH Addict
Joined: Jun 2005
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From: England
With an LS1 you need 3" inlet/outlet CATS else they will be too restrictive. Also you don't want to mount the CATS directly to the headers, you need a bit of space between them. You can by neck down pipes to go from 3" to 2.5" (not sure where but I've seen them, might have been Summit).
Thread Starter
11 Second Club
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From: Springhill, FL
2.5" was what the entire stock exhaust, including cats was made from. When I upgraded to high flow cats..i had to get the right size.
I"m buying pipe to do some custom bends ect...so again..how far can I stretch it ?
I"m buying pipe to do some custom bends ect...so again..how far can I stretch it ?
Teching In
Joined: Dec 2004
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Originally Posted by 300bhp/ton
With an LS1 you need 3" inlet/outlet CATS else they will be too restrictive. Also you don't want to mount the CATS directly to the headers, you need a bit of space between them. You can by neck down pipes to go from 3" to 2.5" (not sure where but I've seen them, might have been Summit).
