i was looking at my zc motor and now i want to know. can i use the stock zc header and down pipe? if not em i best to go with a si header or a integ they are the same price but i don`t think i have to mod the integ... but i`m not sure if a header is worth the cash from what i read their worth about 2hp and 5lbs tor on the dino so i was thinking of just useing the stock zc header.. or a cheaper hp racing header i`m sure i can pick up 2 hp`s cheaper..

 

I am not 100% sure if the entire upper and lower zc exhaust manifold will reach the cat. You can simple use your stock SI exhaust manifold (ported out just a bit) and it will work. A header will be somewhat of a gain I guess.. its not really my cup of tea, but it works. I think Focuz sells cheap ZC/SI headers for around 150 bucks.. And you looking to get around 5-8hp.

Jeff

 

to start i don`t have a stock si down pipe. i`ve got a dx that i`m putting a zc in.. what is the best way to go i can use the zc header and down pipe with new 2in exhaust and muffler or put a header on with stock exhaust and change it some other day.don`t have the cash to do both right now and the header is a small bang for my buck