Originally posted by reddemon009
i would go with a dc sports 4-1 ceramic 1 peice header. you do not need to replace the cat unless you have a dx lx or cx where the cat is built in the stock exhaust manifold.
actually, my cat is after the downpipe....
it doesnt line up correctly though, it forms a V where they meet so it leaks, high flow within the next few days...