Competition Clutch Ultra Lightweight Steel Flywheels (STU suffix) are recommended for forced induction and/or track and rally racing applications. This flywheel is machined with less material to assist in quicker revving capabilities. Well-suited for Stage 3 and up clutch applications. Made of 4140 forged steel and are a one-piece design. All flywheels are SFI certified. Not all applications have the ST and STU versions available. Flywheel weights vary from 8lbs to 18lbs depending on application.
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This Part Fits:

Year	Make	Model	Submodel
2005-2011	Lotus	Elise	Base
2011	Lotus	Elise	R
2008-2011	Lotus	Elise	SC
2006	Lotus	Exige	Base
2007-2009	Lotus	Exige	S
2008-2010	Lotus	Exige	S 240
2003-2005	Pontiac	Vibe	GT
2000-2005	Toyota	Celica	GTS
2003-2004	Toyota	Matrix	XRS