Originally posted by EliteAccord
With DC Sports headers and Apexi Dunk catback exhaust I lost low end for mid to high end gains. I have stock cat to maintain at least some back pressure. I wonder with a high flow cat how much more low end would be lost.
a noticable amount im sure. but i think the gains on high end would be pretty beneficial. which do you do more is the question. if youre light to light or drive thru traffic regularly then id keep the oem cat. i do mostly hwy, so im considering a hi flow before i take the leap to n20.