GYTR® High Compression Piston Kit

Increases engine compression ratio ot 13.2:1 (stock is 11.4:1). Offers 1.5 to 3 hp increase throughtout most of the power band. No crank rebalancing necessary. Piston is forged aluminum with machined valve pockets for additional valve clearance when higher lift camshafts are used. Includes piston rings, piston pin, and clips (uses stock replacements). Uses stock gaskets (not included). Requires use of a minimum 100-octane racing fuel.

This accessory is restricted to closed-course competition only.

• Fits ’06~’09 & ’12 YFZ450

Note: All YFZ450X and YFZ450R models are regulated by the EPA. Because this accessory affects emissions, using it constitutes illegal tampering punishable by law unless the vehicle is only used in closed-course competition. Note: This performance accessory does not meet California standards for off-road recreational vehicle usage.