Description
Designed around the drivetrain package used in 1986–1991 RX-7 / 2004–2011 RX-8 (Mazda), the EXEDY Performance Clutch Kit – 1986–1991 RX-7 / 2004–2011 RX-8 (Mazda) is intended for drivers prioritizing enthusiast street, autocross, HPDE, and modified performance builds and correct EXEDY component matching.
Manufacturer Background
Since 1923, EXEDY has developed clutch and powertrain components for OEM and performance use around the world. The company's Daikin Clutch heritage and motorsports engineering experience underpin a catalog that ranges from OE replacement hydraulics and clutch kits to SFI-certified sport clutches, chromoly flywheels, and Hyper multi-plate assemblies.
How This Product Is Intended to Be Used
EXEDY's performance single- and multi-plate systems are intended to raise torque capacity and heat tolerance while matching the engagement characteristics to the car's intended use. Stage 1 uses an organic friction strategy for the most street-friendly behavior; Stage 2 moves to cerametallic friction for harder use; Hyper systems add dedicated flywheel and multi-plate architecture for substantially higher-output builds.
Choose the least aggressive configuration that comfortably covers the engine's torque and heat load. That approach normally gives the best balance of drivability, service life, transmission friendliness, and track durability.
Available Configurations
This parent listing contains multiple EXEDY configurations for the same application family. The differences below are functional and should be selected around torque demand, heat load, and acceptable engagement behavior.
| Configuration | EXEDY Part Number | Construction / Character | Torque Capacity | Recommended Use |
|---|---|---|---|---|
| Hyper Single | ZH02SD | Single-plate Hyper clutch with dedicated lightweight flywheel; sprung-center disc. Performance-oriented but more manageable than multi-plate systems. | Application-specific | Moderately to highly modified street/track cars that do not require a twin |
| Hyper Triple | ZM013SR | Triple-plate Hyper system with lightweight chromoly flywheel. Competition-focused; not recommended by EXEDY as a general street setup. | EXEDY general Hyper Triple family rating: approximately 800 ft-lb at the flywheel; verify the exact SKU/application | Very high-power drag/race builds requiring multi-plate capacity |
| Hyper Twin | ZM012SD | Twin-plate Hyper system with lightweight chromoly flywheel; sprung-center disc. Direct, motorsport-oriented engagement. | EXEDY general Hyper Twin family rating: approximately 500 ft-lb at the flywheel; verify the exact SKU/application | High-power street, drag, road-race and rally applications |
Selection Notes
For 1986–1991 RX-7 / 2004–2011 RX-8 (Mazda), the Hyper Single is the more sensible choice when the car still sees meaningful street mileage and the power level does not justify two friction discs. The Hyper Twin is intended for a materially higher torque/heat load and is better suited to serious forced-induction, drag, or repeated road-course use.
Specifications & Service Notes
- Clamp Load: Stage 1/2 covers are designed around roughly 40% higher clamping load than the genuine part
- Pedal Effort: Typical Stage 1/2 increase is approximately 20–35%, application dependent
- Flywheel Compatibility: Stage 1/2 generally use the OEM flywheel unless noted; Hyper systems include/require their dedicated flywheel
- Certification: EXEDY Stage 1, Stage 2 and Lightweight Flywheel products are SFI 1.1 certified
- Vehicle Application: 1986–1991 RX-7 / 2004–2011 RX-8 (Mazda)
- EXEDY SKUs: ZH02SD, ZM013SR, ZM012SD
Application-specific construction notes: Sprung-center disc, Cerametallic friction.
Fitment note: Fitment should be verified against the exact drivetrain, not model name alone. Check year, engine, transmission, and any existing flywheel or EXEDY clutch-system part number before installation.
