alright, i have a type r motor and plan on leaving it stock. but it isnt even in an integra, its in a civic. but the issue im having right now, is what header to buy... i wanna buy a cheap ebay 4-1 header but i cant find any for an itr, just for a gsr. the reason i wanna use a cheap header at first is cuz im not sure a 4-1 header will work in my car, i'm gonna use the cheap header to test fit. the rest of the exhuast is custom, so does it matter whether i use a header from a gs-r or itr? will there be an issue in clearance from the oil pan, etc on the type r? or is it just the lengths that make them different part numbers?