Manufactured by SPI Includes 2 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 .020 over bore size 70.00mm Fits 2001 2003 Ski-Doo Grand Touring 500 L/C 2002 2003 Ski-Doo Grand Touring 500 Sport 2002 2003 Ski-Doo Legend 500 / Sport 2000 2003 Ski-Doo MXZ 500 all Liquid Cooled models 2001 Ski-Doo Formula DLX 500 L/C