Hi, currently i have purchased an AW header and a zpi spipe. I planned to get a greddy evo2 exhaust and a zpi midpipe. After lookig through the forum i am really concerned about rasp. I really like the look of the evo2 but would kill myself if it sounded horribly raspy. My solution would be to get a highflow cat and a resonator installed in the midpipe (im assuming thats where the resonator would go). My question then is this going to solve the problem or just make it sound less ____ty. IC alot of full catback systems, but they all have the a layout that basically Has the muffler going perpendicular to the back of the car, i would think that would not have as good of flow as a straight system like the evo2.

Comments please, i would love to hear from peopel who have AW and greddy evo2 and have been able to address the problem, I know most of you dont have the zpi midpipe yet (i dont thik they even really shipped yet). Would the addition of the midpipe make it harder or easier to resolve the rasp problem?

 

The midpipe shouldn't dramatically effect it either way... but if it did, it'd probably make it a little worse...

It seems to be all in the muffler, as some mufflers are able to tame the rasp and some aren't... a couple resonators seem to help some guys... so if you get rasp with the Evo2, that seems like the best solution....

 

i have greddy evo 2 and aw headers and i have rasp....it was drasstic at first after i installed the headers...but after a while it kinddaaa calms down and becomes a lil deeper rasp....but just to let u know...it may sound alilll badd....but with my aw headers...greddy evo...and injen cai....i've made a huge differencee and i've beatin a lott of quick cars....from civic hatches with gsr swaps to gti's....its all up to u.... im coping with it and hopefully it calms down or i'll find a solution later on

 

so you didnt buy a resonator? i am planning on getting the best resonator i can find, do you think that would solve it?

 

arent you selling your alphawerks header on clubsciontc?

 

I had a 30" magnaflow resonator installed yesterday and it solved all of my raspiness (with a stock muffler). The stock resonator cant handle the extra flow but a longer one can handle it just fine. Im much much happier with it now. It was $105 installed.