Double the horsepower of your TT-R50 with this 84cc big bore kit. Includes assembled head, piston, rings, cylnder, carburetor, manifold, air filter, high-volume oil pump, clutch kit, gaskets, and detailed installation instructions. Fits '06-'08 TT-R50
Note: This accessory adversely affects emissions. Installation on 2006 or later TT-R models constitutes tampering under federal EPA regulations except when used solely for closed-course copetiton, making it illegal for off-road/off-highway use.