Now i gotta 03 GT. Mods are: 70mm TB C&L plenum, k&N induction kit, mac H-pipes, flowmaster cat-back, 3:73 gears, aluminum driveshaft and SCT xcal 2 tune. I got 257hp and 297tq. Is there any other parts I need to get a little more HP? Don't have the money for a vortech yet.