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 standard bore size 77.25mm Fits: 2000 600 XC SP (EV) 2000 600 XC SP Edge 2001 600 XC SP 2002 600 XC SP Edge 2002 600 XC SP Edge X 2002 600 XC SP M-10 2003 600 XC Edge 2003 600 XC SP Edge 2003 600 XC SP Edge X 2003 600 XC SP M-10 2004 600 XC SP Edge 2004 600 XC SP M-10 2005 600 XC SP