Most Wiseco 2-stroke pistons are forged from high-silicone bar stock Greater strength and lower expansion at high temperatures All Wiseco High-Performance pistons are priced with rings, wrist pins and circlips Wiseco ring types are not interchangeable (i.e., CD is not interchangeable with LC) and fit only Wiseco pistons Wiseco pistons can be fitted only with Wiseco rings. - Sea Doo XP 951 DI (2004, 2003); Sea Doo LRV 951 (2002, 2000, 2001, 2003); Sea Doo Sportster LE 950 (2002, 2001, 2003, 2000); Sea Doo GTX 951 DI (2002, 2001, 2000, 2003); Sea Doo XP 951 LIMITED (2001, 2002, 1998, 2000, 1999, 2003); Sea Doo 3D DI 951 (2006, 2007); Sea Doo GSX 951 Limited (1998, 1997, 1999); Sea Doo RX 951 DI (2000, 2002, 2001, 2003); Sea Doo RXX 951 (2001, 2002); Sea Doo GTX 951 Limited (1998, 1999); Sea Doo Sportster LE DI 950 (2004, 2005); Sea Doo XP 951 (2001, 2000, 2002); Sea Doo GTX 951 (2001, 2000, 2002); Sea Doo RX 951 (2001, 2002, 2000); Sea Doo LRV 951 DI (2003, 2002)