Originally Posted by bambbrose

its not gonna make you loose any power, backpressure is just a myth, and maybe, just maybe it'll help out on the top end.

what these guys are saying is that all in all, it's not worth it to have a test pipe and have the CEL when you could've gotten a Hi-flo cat, that would flow almost as well.

Exhaust flow isn't gonna be limited by your OEM cat even, because you probably aren't making enough power with the D series. Save your money for some better mods. if you want real power and don't feel like swapping have your head redone, all NA honda power is found in the head and bumping up compression