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The Exedy lightweight racing flywheel for 2004–2014 Subaru Impreza WRX STI is a one‑piece billet chromoly steel unit that reduces weight and inertia to sharpen engine response for light to moderately tuned racing and street use. It improves clutch cooling with special airflow features, integrates the ring gear to avoid separation risks, is SFI certified and has passed engineering tests to 15,000–18,000 RPM; specifies a 13.3 lb. construction.
Exedy 2004-2014 Subaru Impreza WRX STI H4 Lightweight Flywheel
