I trying searching for this ? because i know its been asked. Theres a guy that has a apex header for $270 but it came off a b16. Right now i have the stock exhaust on , but im going to replace it in about a month. How would this header fit, should i just wait till i get an exhaust and put them both on? thanks

 

B16 has a shorter deck height than the B18s, so the header might hit the oil pan.