Manufactured by SPI Includes 3 pistons, ring sets, wrist pins, circlips as pictured SPI pistons are engineered to provide the best possible path for combustion chamber heat transfer to the cylinder walls All SPI pistons, rings, pins, circlips are manufactured to OEM specifications All individual components are interchangeable with original parts Piston weight is compatible with original piston T-Moly series with Teflon-Molybdenum coating T-Moly series pistons reduce friction, resist seizure, improve durability Made in Taiwan Pistons are for standard bore size 69.80mm Fits 1998 2000 Ski-Doo Formula III 700 1997 2000 Ski-Doo Formula Mach 1 1998 2000 Ski-Doo Grand Touring 700 1997 1999 Ski-Doo Grand Touring 700 SE