hopefully nothing bad. the car is more powerful than what GM states. my car has a quoted 320hp. yet it puts down 304-305rwhp. now given the 17% drivetrain loss for a manual trasmission, it should be rated at about 355hp. with simple bolt ons... almost 400 at the crank, or 335rwhp. which is equivilant to a ZO6. however the ZO6 is lighter. my goal with this car is approx 420-430hp at the crank. ive got all my plans set out already