Welcome! I'm a Magnaflow man myself.

 

I ll put my 2 cents on this to say that I installed an Injen CAI and the Greddy EVO2 on my 2005 Ex coupe. Now first off my car sounds a lot better when reving at High RPMS not so whiney, alot deeper tone, and smooth acceleration. On the top end it seems to pull alot better from 85 to 100mph.[8D] Did I mention when you start the engine it sounds nice and low. The Greddy is nice if you dont want that fart can sound. Just a nice deep tone on acceleration.