ok i know this has probably been talked about many times but when i search i see so many different opinions and answers and it jsut all confuses me. i have an 04 sti that i just got today. it already has an exhaust on it but nothign else. i was thinking about getting the k&n intake but some people say not to. i was going to get a bov but i understand thats probably not a good idea on a stock motor so im not doing that. what do you guys think i should buy for it?