Exedy Stage 2 Cerametallic Clutch Kit Thin Disc, Subaru WRX / STI
The Exedy Stage 2 Cerametallic Clutch Kit with Thin Disc for the 2002-2005 Subaru WRX and 2004-2021 STI delivers cerametallic friction material performance in a reduced-thickness disc format. The thin disc design provides faster engagement response than a standard-thickness cerametallic while retaining the material’s heat resistance and holding capacity advantages over organic discs.
DETAILS
- Disc: cerametallic, heat resistant, higher holding capacity than organic
- Thin disc design, faster engagement, reduced rotational inertia
- Higher clamp load than Stage 1
- For modified WRX/STI builds with increased power
- More aggressive engagement than organic, adjustment recommended
Cerametallic friction material uses a copper-ceramic compound bonded to a steel backing plate. It handles heat more effectively than organic material, resists fade under repeated hard engagement, and provides a higher coefficient of friction that supports increased torque capacity. The thin disc format reduces the disc’s moment of inertia, which improves shift feel and reduces the drivetrain shock on engagement.
The engagement character of a cerametallic disc is different from organic, it grabs more definitively, with less slip in the engagement zone. Drivers transitioning from a fresh organic clutch will feel this immediately. The engagement is not harsh by race disc standards, but it is more binary than an organic disc. Rev-matching on downshifts becomes more important, and two-foot launches are more effective.
What’s in the Box
- Exedy cerametallic clutch disc (thin)
- Exedy pressure plate
- Release bearing
- Pilot bearing
- Alignment tool
Why Choose Exedy
Exedy is the world’s largest clutch manufacturer and the OEM supplier to more than six major vehicle manufacturers globally, including Toyota, Honda, Subaru, and Mitsubishi. Every Exedy performance clutch is designed and manufactured as a purpose-built performance component, not a modified OEM part, not a remanufactured unit, but an engineered system built specifically for performance use from the ground up. Exedy’s research and development happens on actual race programs alongside their road car product development, meaning the technology that wins championships filters directly into the street performance catalog. When you install an Exedy clutch, you are installing a product from the company that builds the OEM clutch for the car it is replacing.
The RallySport Take
The Exedy Stage 2 Thin Disc is for WRX and STI owners who have modified their engines to the point where the Stage 1 is no longer adequate and want the engagement characteristics that cerametallic provides. Fits the 2002-2005 Subaru WRX and 2004-2021 WRX STI as listed in the fitment table.
Fitment
| Year | Make | Model | Notes |
|---|---|---|---|
| 2002-2005 | Subaru | WRX | EJ20 thin disc |
| 2004-2021 | Subaru | WRX STI | EJ257 thin disc |





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