Description:
Performance kit stage II for ATV Yamaha YFZ450 38% increase in power. Includes all Stage One parts plus high compression forged CP piston assembly designed to our specifications to work with stock head (with rings, wristpin and circlips), High performance billet camshafts (cams to be exchanged), dual valve springs with titanium retainers
Price USD 992.50/set
Pistons are available in the following bores and compression ratios:
95mm Bore: 12.5:1, 13:1, 13.5:1
96mm Bore: 13:1, 13.5:1
97mm Bore: 12.5:1, 13:1
98mm Bore: 12.5:1