Exedy 1986-1991 Mazda RX-7 R2 Lightweight Flywheel Requires Vehicle Specific Flywheel Counterweight

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Exedy flywheels combine low weight, low inertia and high thermal capacity. They are designed for lightly tuned racing cars and drag racing, autocross and rally events, as well as s treet usage. They are made from solid one-piece billet chromoly steel or chromoly steel forgings. They are specifically designed to reduce weight and inertia for better engine response. Most incorporate special design features to enhance airflow and cooling of the clutch. The ring gear teeth are integrated onto the flywheel unlike an aluminum flywheel where the ring gear is pressed onto the flywheel and has the possibility of separating due to different expansion coefficients of aluminum vs. steel. Exedy steel billet and forged steel flywheels have passed engineering tests to 15,000-18,000 rpm and guaranteed not to fail to the said rpm and are all SFI approved. Show more