Axles, suspension and differential are 100% stock! It wouldn't take much to get the 60' in the 1.3 range since the nitrous doesn't activate until 4,750 rpm's. When I go back I am going to lower the activation point to 3,750 or 4,000 rpm's and increase the shot from a 100whp to 150whp shot. Car ran 10.610 on just motor.