Recommended exhaust size for current 120 whp?
Posted:
Mon May 07, 2012 11:59 pmby RENO EG8
I've got a d15b7 I'm gettin ready to sell this fall after exhausting, 4-2-1 header, cai, intake mani, and throttle body. D15b7's sit 100 whp stock, I'm figuring Ill be at around 120- 125 whp before exhaust. Probably a little exaggerated there but what size piping would be ideal on the exhaust?
Posted:
Tue May 08, 2012 4:51 amby brandoff88
i personally run 2 1/4 because after that you start to loose back pressure and power, kinda the same concept as hollowing out a caty or using a test pipe, it will let the flow of exhaust slow down and you will loose power, and nornally you dont need anything bigger unless you run boost. but 2 1/2 should be the max you would run without boost. hope this helps
