I think i am gonna go with the WS2 catback, but what are my best options from the header to the cat. i know i need to get rid of the stock cat but do you guys have any suggestions on aftermarket cats? will all the flanges match up from the civic exhaust to the b series header cat combo.?

 

i would get a cat for the car you drive, not for a b-series header.

then of course get the cat-back for your car.

then get a b-series header.

 

the flanges on bseries headers and d series headers are the same. same with the flanges on the cat its just the cat length is different i believe