I just bought my gxp about 3 weeks ago. I am still working on fine tuning my diablo sport programmer and I got one of those nifty tornadoes and a k&n filter. Going to get my windows tinted this weekend but I was hoping to pick up any and all suggetions for where to go from there. I was looking into a turbo or a SC but 5 g's is a bit too much atm. I may go for dual exhaust all the way through next. Any other GXP owners interested in performance message me if you have any info. Thanks.