I am not the smartest guy when it comes to modifying cars. So I'm wondering what are some of the best things to do to my tC? I had the trd exhaust installed. Is cold air induction the next best thing? Or do I get lighter pullies? should I get a short throw shifter? I know all this stuff has been discussed in other forums but I want someone to tell me plain and simple what I should do. Any and all replies are a big help.