NCY Cylinder Gasket Set (57.4mm); GY6 150cc ebc It'll reduce noise by 4

It'll reduce noise by 4 dB and it will also increase performance and torque due to better balance in backpressure

We recommend this V2 cam for 155cc or smaller engines and/or tighter tracks

back-charge protection

you can weld the muffler tabs to any position or placement that will fit your application

NCY Cylinder Gasket Set (57.4mm); GY6 150cc ebc It'll reduce noise by 4Complete 57. 4mm Cylinder Head Gasket Kit for 150cc GY6 4 stroke engines. Includes head, base, exhaust, intake, valve cover, secondary air and timing chain gaskets. Specifications: Diagonal Bolt Hole Spacing: 76mm Base Gasket Inner Diameter: 62. 5mm Head Gasket Inner Diameter: 59mm Timing Tensioner Gasket Inner Diameter: 22mm Exhaust Inner and Outer Diameter: 23. 5mm 30mm Manifold Inner Diameter: 25mm Product may vary from photos