I thought the same thing with my injen about the rasp. When I first got it, I heard almost no rasp. Now, 2k miles later and my resonators have blown all the crap out of them, and I can hear more rasp than I would like to but still not near as bad as stock exhaust. Let me know how it sounds after a couple thousand miles and I might switch.

 

Mine evo 2 seems very quiet

 

I dont understand in picture no.7 it shows something that looks like a y-pipe. I was under the impression that the greddy system was a true dual. Can somebody clarify this for me or show me an under car pic that would show the proper layout of the exhaust.

Thanks.

 

It does have a y-pipe, but you can think of it as a really big x-pipe - the y-pipe goes into a resonated chamber (about 12-15" long) then a small extension pipe (only on G35 coupe), THEN it splits back into two tubes that then remain separated the rest of the way through the system (through pre-mufflers, then the canisters)

Hope this clarifies...