So a friend finally payed me back and I am now sitting on a grand. I would really like to put it all in my GTP. My question is...if someone (with experience) could give me an idea as to what I should do with it I would appreciate it greatly! I need specifics like brand, type, size, and where to get it. I already have a k&n CAI, SLP exhaust, biilet grill, viper remote start, and a killer sound system. I would really like to get more power out of it so again, if anyone could help me out it would be GREAT!!!! Oh yeah its an 04.