Alright so i had my race pipes put in the other day, gotta say i deff feel a gain. the only problem is when i coming down in the revs i can hear an air flow, i wanted to know if this is normal, a wearing process, or what. they completely changed the sound of my greddy, the whole exhaust is just rasp now, to me it sounds like an m3 with a v35 engine. let me know guys, thanks

 

Shoulda gotten the Crawford high flow cats =)

 

anyone agree?

 

That sound is normal. When i first had them installed, it seemed like it was loud, but now, it got more quiet. I dont know if i just got used to it or if it really did get quiet. Either way, i love the way it sounds with my fuji exhaust

 

how do other people feel about the race pipes, how much would it hurt my gains if i was to actually switch to crawford cats. cause i really miss the g35 sound that you get with the greddy