Originally Posted by XFiring

I agree about those numbers but i think they are closer to around 190 WHP, not going to argue over that. I think the 200 WHP were with type r cams and maybe one or two fluke people. It all depends on the starting dyno. bottom line is with all 4 of those you'd gain between 20 - 25 WHP.

To me I had the AEM V2 and RS-R exhaust. I noticed an increase in MPG and performance. Enough (at least in just sound) to justify my purchases.