Wiseco 2379M07800 Piston Kit for Ski-Doo Formula / MXZ / Mach I 670 - 78.00mm 1974 Yamaha MX100 All of the 9 preloaded

All of the 9 preloaded timing maps provide a 500 RPM increase in RPM limit over stock and can be selected by simply turning a switch dial on the top of the unit

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Wiseco 2379M07800 Piston Kit for Ski-Doo Formula / MXZ / Mach I 670 - 78.00mm 1974 Yamaha MX100 All of the 9 preloadedWiseco Performance Piston Kit Part Number: 2379M07800 Piston Size: 78. 00mm These kits contain everything you need to complete your piston repair, the first time Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy. High Performance ring kit and alloy pin included with each piston kit for extended life and sustained power. Each piston is built from race proven designs that are chosen by the top race teams in all