The Competition Clutch Forged Ultra Lightweight Steel Flywheel is recommended for forced induction and/or track and rally racing applications. This flywheel will work with ALL performance and stock clutch assemblies. *Qualities of the CCI Ultra Lightweight Steel Flywheel* * One piece ring gear for high durability * Weight varies from 8 lbs. to 10 lbs. depending on application * Well suited for Stage 3 and up clutch kit applications * Stamped with 4140 plate with 2000 ton pressure at 1260 degrees * CNC machined and balanced to O.E. specifications Reduced Mass = Increased Accleration Meets and exceeds SFI 1.5 PartNumber : comp2-617-1STU Description : Forged Ultra Lightweight Steel Flywheel FW Weight : 10lbs 2005-2011 Lotus Elise Base L4.1795cc Drivetrain::Flywheels 2011 Lotus Elise R L4.1795cc Drivetrain::Flywheels 2008-2011 Lotus Elise SC L4.1795cc Drivetrain::Flywheels 2006 Lotus Exige Base L4.1795cc Drivetrain::Flywheels 2007-2009 Lotus Exige S L4.1795cc Drivetrain::Flywheels 2008-2010 Lotus Exige S 240 L4.1795cc Drivetrain::Flywheels 2003-2005 Pontiac Vibe GT L4.1795cc Drivetrain::Flywheels 2000-2005 Toyota Celica GTS L4.1795cc Drivetrain::Flywheels 2003-2004 Toyota Matrix XRS L4.1795cc Drivetrain::Flywheels