I bought the HKS exhaust because it looked great, sounded damn awesome and was half the price of all the other exhausts.

If ur looking for any particular gains from simply changing your catback exhaust ur dreaming AND u should save ur money up for a SC or turbo kit.

Changing a cat back exhaust may add a few hp MAX, which you definately WON't feel. The feeling that u think ur going faster is prolly cos u SOUND like ur going faster. I bought the HKS exhaust and tested it against my other friend's s2k, no real change. Was I dissappointed??? No.... cos gawd damn it sounded great.

So dream on if u think buying an exhaust is going to make ur s2k light speed.