Our customer, David A., recently purchased an Exedy Stage 3 hyper single clutch kit for his 2009 Subaru Impreza WRX STI. All Exedy hyper clutches come with a steel flywheel and a 6-pad disc with cerametallic facing, in addition to a spring center damper. The disc is generally thinner and smaller than the OEM factory disc, resulting in lower inertia and therefore quicker, easier shifting. The higher clamp load and cerametallic friction facings provide approximately twice the holding torque of the OEM clutch and generally higher than other single plate clutches on the market. Check out the key elements of this product below, as well as the great photos David sent in of the clutch kit.
Features:
- Sprung Center Disc
- 225mm/Pull Type/24T/25.2 Spline
- Wheel Torque Rating 375 lbs./ft.
- 2922 lbs. Clamp Load
- Kit Includes: Clutch Cover Assy/CD Assy/Flywheel/Cover Bolt SE/Flywheel Bolt
Cerametallic Friction Disc:
- Exedy Exclusive Friction Composition
- High friction coefficient material
- Designed for low wear and high heat resistance
- Heavy Duty hardened spring damper
- Heavy Duty bonding agents retain clutch material
Forged Aluminum Cover:
- Average of 40% increase in clamp load over stock
- Extra capacity holds street/race car power upgrades
- Forged assembly far stiffer than stamped-type
- Incredible strength means no clamp-load deflection
- Integrated turbine-like fins enhance airflow, keeping clutch assembly cooler and will help extend life
- Ductile iron pressure plate provides high strength, anti-burst protection in all temperature ranges
Forged Chromoly Flywheel:
- Combination of low weight and high heat capacity
- Designed for Rally, Drag and hi-performance Street
- Reduced weight and inertia means snappier throttle response and quicker shifting
- Designed to increase airflow to help cooling (most)
- One-piece flywheel – starter teeth machined in place
