crxrx7

I don't know but my friend has the 3" magnaflow on his crx and it doesn't sound like a honda anymore. More like a v6. I have the 2.5" on mine and its quiet and deep. No rasp at all.

gurusan

3'' OBX Greddy Evo style.

They make shitty manifolds but their exhausts are awesome. I have the 2.5'' on my apexi piping right now and it sounds very nice, and looks great. I plan to swap it out for a 3'' catback with the same muffler in 3'' in the near future.

It's one of the best sounding exhausts i've ever heard, no joke.
http://cgi.ebay.com/ebaymotors/OBX-G...19694475QQrdZ1

Slo_crx1

2.5" straight pipe out the back...sounds awesome when i hit boost (can here it spoolin up nicely ), and is still quieter than my old tanabe was