back pressure question...
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2fast4u
Joined: Jun 2004
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back pressure question...
i have a low compression b16 swap in my car and it has a full 3" exhaust. my question is would i be better off running an open header or the 3" exhaust? i need expert advise please
! Ne shab'rud'ni !
Joined: Jun 2002
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from my understanding a n/a engine is better on a 2.5" exhaust and a fi engine is better on a 3" exhaust
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