im confused as to which way to go. i have a dc header that has a 2 in collector. im planning on just running i/h/c/e. should i stick with the 2 in header collector and get a 2 1/4 cat and exhaust? or should i go 2.5 in all the way? which would yield better gains? also, if i went with 2 in header collector, 2 1/4 cat, and then a 2.36 exhaust would that be ok? thanks in advance.

 

just get custom 2.25 piping with a universal muffler...dont get 2.5 piping if your just going to get i/h/e...and for the cat either get a 2.25 test pipe or a name brand one