Quote Originally Posted by snYpz View Post
yeah i know the header output is 2". I'll probably get the topspeed and get a new 2"x6" flex pipe.

So it doesnt matter if i order the 2.25 or 2.5 magnaflow cat? Would you happen to have the link to where u purchased yours Suntzu?

Whats the reason behind CEL anyways? ANything we can do besides i think throw in a a defouler(?)
...after reading up on cat issues, im getting more confused lol

CEL sometimes comes on because of the increased flow over the o2 sensor...

this is my opinion, and im just working off basic physics here, but if your exhaust doesnt become louder after replacing the cat, then you prob havent gained much if any... more noise = more flow = gain...