BoostDistrict is proud to offer a retrofit LSA supercharger kit in the 2008-2009 G8 GTs. Using the stock 2.95" pulley, this kit is capable of up to 500RWHP out the box with a completely factory car.. Full exhaust and cam will get you to 590-640 Wheel Horsepower. On E85, 750-800 has been doable.
This is a complete bolt on kit which comes with all necessary items needed to bolt the supercharger on to your G8.