GP Series piston have additional features over standard Pro-Lite parts
Each piston is electra-coated on the crown, ring grooves, and pin bore, for maximum wear resistance and protection from micro-welding, galling and detonation
GP Series parts generally have less machining on the outside, which helps seal up the bore for increased compression
Boost ports are removed for a more predictable powerband and increased pull on the top end
Kit includes piston, ring(s), wrist pin and circlips
