The GYTR High Compression Piston Kit provides a performance boost throughout the RPM range while maintaining a high level of durability. Machined valve pockets provide additional valve clearance when used with higher lift camshafts. The kit includes piston rings, piston pin, and clips (uses stock replacements). Requires use of minimum 100-octane racing fuel.

Note: For use on 2014-2015 YZ250F models, you must replace stock oil nozzle with newer component (1SM-15155-10) for proper function of GYTR High Compression Piston.