Manufactured by SPI Includes 2 pistons, ring sets, wrist pins, circlips, bearings full gasket kit 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 72.00mm ***Pistons are dual ring design, single ring pistons also available*** Fits 2008 Ski-Doo 600 Skandic SUV SDI 2003 2007 Ski-Doo 600 MXZ HO / Sport HO / Trail HO 2007 Ski-Doo 600 MXZX / MXZX-RS / MXZX Blizzard / MXZX Adrenaline 2004 Ski-Doo 600 Legend HO 2003 2008 Ski-Doo 600 Summit HO / Adrenaline / SDI 2004 2008 Ski-Doo 600 GSX HO 2004 2008 Ski-Doo 600 GTX HO 2005 2008 Ski-Doo 600 Expedition HO / TUV / SDI 2007 2008 Ski-Doo 600 MXZ Renegade X SDI