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 75.40mm Fits 1993 Arctic Cat EXT 580 L/C Mountain Cat 1993 Arctic Cat EXT 580 L/C Z 1994 Arctic Cat EXT 580 L/C 1994 Arctic Cat EXT 580 L/C EFI 1994 Arctic Cat EXT 580 L/C EFI Mountain Cat 1994 Arctic Cat EXT 580 L/C Mountain Cat 1995 Arctic Cat EXT 580 L/C 1995 Arctic Cat EXT 580 L/C EFI 1995 Arctic Cat EXT 580 L/C EFI Mountain Cat 1995 Arctic Cat EXT 580 L/C Powder Special 1996 Arctic Cat EXT 580 L/C 1996 Arctic Cat EXT 580 L/C EFI 1996 Arctic Cat EXT 580 L/C EFI DLX 1996 Arctic Cat EXT 580 L/C EFI Mountain Cat 1996 Arctic Cat EXT 580 L/C Powder Special 1997 Arctic Cat EXT 580 L/C EFI 1997 Arctic Cat EXT 580 L/C EFI DLX 1998 Arctic Cat EXT 580 L/C EFI 1998 Arctic Cat EXT 580 L/C EFI DLX