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OZMAN · Aug 12th, 2003, 01:14 AM

2.5 inches naturally aspirated,3.0 inches on turbo applications.3 inches is way 2 big for all motor applications u do need sum back pressure,but on a turbo application your turbo is your backpressure.

Aug 12th, 2003, 01:14 AM	#7 (permalink)
OZMAN Nissan Enthusiast Join Date: Mar 2003 Location: JERSEY Posts: 180	2.5 inches naturally aspirated,3.0 inches on turbo applications.3 inches is way 2 big for all motor applications u do need sum back pressure,but on a turbo application your turbo is your backpressure. __________________ OZMAN