Originally Posted by NonStopTuning

That't about right. If you compare them on an n/a or turbo engine, the Underdrive Kit will outperform by about 10%.

The CR-Lite Kit, however, is the only kit that is compatible with a supercharged setup. So if you are, or ever plan to be, supercharged then you will need the CR-Lite Kit.

Either way your car's performance will go from to
and members of the opposite sex will go from to


MIKE @ NST