hey i was wondering witch exhaust would perform the best and not sound so rice...my brother has a hks hi-power on his rsx type s and it sounds pretty deap. so i was thinking either get the hks or a the apexi n1 witch one is better .

 

HKS and Apexi it wont matter whice one you choose, they are both awsome brands to go with, either one you wont be dissappointed.

 

Yea iv'e been looking at the HKS but i can't find any sound clips of it on a civic. what year and model is your's? i have a 99 ex. if you find any sound clips please pm me.