Ok my gsr has an aem cai w/bypass valve, dc 421 headers and greddy evo2...Now i plan to change the muffler to an apexi ws2 and leave the evo2 pipe when i get a chance(how much the cost anyways? cant find a price)...Now, my car came with these bolt ons...What i want to know is this...With the cai there is a loss of low end power right? But it gives ore power in the top end? This is how it is right? So, in a way is kinda negates where it gains? I mean, compared to the stock intake, what is the advantage in gains? I know its not a big gain but is it really doing anything for me? Or does it go well with my other bolt ons, if so how much more power am i getting from all this ****? 2whp...I'm just curious

 

bump

 

i think the evo2 is a 2.5" and the ws2 is 2.36" .... i mean it's not much of a difference but it will definately be your bottleneck if your cat isn't already that.

 

Too small a difference to notice man...