The most cost effective performance up grade for a car is a lightened flywheel.
Standard items are always quite heavy to smooth out standing starts and general driving , this is not ideal in the performance world.
Removing rotating mass is the oldest trick in the book in performance tuning.
Lightened flywheels make your car engine accelerate quicker, less power is used to change the speed of the flywheel and more goes to the back wheels.
We make a large range of steel flywheels for almost all vehicles and clutch types.
Worth noting is that drag cars actually require a HEAVIER flywheel than standard, weights up to 25lb are common in top cars along with a slipper type clutch.