ok i have been looking up headers for the past week and i have noticed there are more choices for the b18 then there is for the b16 now i know the b18 is taller then the b16 so i wanted to know is there a major difference with the actual hook up of the exhaust? meaning am i going to have to make special bends or move my cat around so on so forth if i get an integra header. or is it just going to be closer to the ground then the b16 header. the reson why i am asking is because in the next year or so i am building a b18 block to put my b16 head on and i don't want to buy another header later on in the game. so should i just get the b18 header and call it a day? or is it going to be more work getting a b18 header now? also is there a big difference with the usdm header and the jdm itr header?