i have a b16a in my civic and a lot of parts sitting in my room.......i have skunk 2 intake manifold, ctr cams, and skunk 2 cam gears.....now my question is what size exhaust i should get and what kind of header? i used to have a jdm itr header in my dohc vtec delsol with 2.25" exhaust and my car was only fast up high. would having the cams and intake manifold change that or would a 4-1 header still make it all top end. i was thinking about getting 2.5" skunk 2 catback exhaust or getting a 2.5" jdm itr muffler and making my own pipes. if you have any advice or if anyone has a set up like this please let me know what you think.

 

anyone? all i need to know is what kind of header i should get