I have a 2001 Grand Prix GTP that I want to mod. I have a simple goal in mind. We have way too many Mustang GT's LS1 anything's, Nissan 350 Z's and Dodge Neon SRT-4's. I want to run and possibly beat those cars. Where I live everyone puts exhaust on and seems to quit because they have a V8 or they just bought something nice and its "fast". So I would like some help. I was thinking of adding a 3.4" pulley, full length custom exhaust with headers (not sure what to do for muffler though...any ideas for exhaust?), colder plugs, Jet chip, K&N cold intake. I have the resources to cam the car but I don't know on these how big of a pain it is to re-tune after the installation, nor do I have the tuner. You guys know my budget, any help that you could provide would be awesome!