i ran 6 races wit a camaro z28 with exhaust and intake, and out of those 6 races i only won 3...the 3 i lost was 1 going at 30 mph, another at 40 mph and one at 20 mph...the ones that i won was at a stand still, 10 mph and 50 mph...i thought the srt6 would really beat the camaro z28.