Originally posted by Snoopy
if you dont get an exhaust your engine will suffer. with more air coming in you'll want it all going out, the stock exhaust will hinder this. a jdm itr 4-1 header and matching 2.5 exhaust is a good choice. the pulleys you're talking about arent tuned. you wont need new injectors. maybe just have your current ones cleaned and blueprinted.
Sorry, I'm tired. I didn't mean pulleys, I meant cam gears. I'll look into the exhaust and header though. You are refering to OEM exhaust and header right?