adrs2k

Hey guys, does anyone have a 70mm HFC laying around or on a car and would be willing to let me test it out? I just changed up exhausts and I am getting a lot of rasp and would like to see if moving from a TP to HFC would solve my problem.

Chuck S

What exhaust did you fit. Hopefully not the Invidia Q300 or N1. All aftermarket exhausts drone in one rpm range or another. These two are horrible between 3000 and 4000 rpm and too loud at any rpm. With or without a cat.

-- Chuck