Sledgehammer vs. stock KTM 300 piston. Sledgehammer vs. forged, modified Wossner piston. Hammertime 

We only sell the best. We've already pre cut on the intake tabs for clearance. Along with our complete top end gasket kit, you're set to race. A base gasket with a .035 thickness, sets the squish band clearence on the cylinder head at .090". This is what you want with a stock head, and our reprogrammed ecu, for maximum power