
Build a high-compression Hayabusa engine with the CP Pistons M4031 forged piston kit designed for 2008–2015 Suzuki Hayabusa 1340cc applications. Featuring a standard 81mm bore, 65mm stroke compatibility, and an aggressive 13.5:1 compression ratio, this piston kit is engineered for maximum naturally aspirated performance and race-focused builds.
Manufactured from premium forged aluminum, CP Pistons deliver exceptional strength, precise machining, and thermal stability at high RPM. This complete piston kit is designed to work with CP rod set 4721 and includes matched components for reliable assembly and consistent compression. Ideal for drag racing, road racing, or high-output street builds, the M4031 piston kit provides proven durability and power potential for serious Hayabusa engines.