Fitment: This Exedy lightweight flywheel is specifically designed for 2004 - 2021 Subaru STI models. Note that it doesn't fit the WRX. If you own a 2006 - 2017 WRX, check out the Exedy Lightweight Flywheel FF502A. Features: These flywheels blend low weight, low inertia, and high thermal capacity. Ideal for lightly tuned cars in drag racing, autocross, rally events, and daily street use. Made from one - piece billet chromoly steel or chromoly steel forgings, they reduce weight and inertia for a quicker engine response. Special design features enhance airflow, improving clutch cooling. Unlike aluminum flywheels, the ring gear teeth are integrated into the flywheel, eliminating the risk of separation due to different expansion coefficients. These flywheels have passed engineering tests up to 15,000 - 18,000 rpm and are SFI approved, ensuring reliable performance.
How to use: Install this flywheel following the vehicle's repair manual or get it installed by a professional mechanic. It's ready to work once properly installed. Precautions: This flywheel is only suitable for 2004 - 2021 Subaru STI models and won't fit the WRX. When using the vehicle, avoid sudden and extreme acceleration to prevent unnecessary stress on the flywheel. Maintenance advice: Regularly check the flywheel for any signs of wear or damage, like cracks or excessive wear on the ring gear teeth. Keep the flywheel clean to ensure good heat dissipation and long - term performance. If you notice any abnormal noise or vibration, have it inspected immediately.
