SKU: P2-745-STU | UPC: 887753963222
Competition Clutch 1989-1995 Mazda RX-7 / 2004-2011 Mazda RX-8 9.68lb Steel Flywheel
Competition Clutch Ultra Lightweight Steel Flywheel (STU series model 2-745-STU) delivers reduced rotational mass for faster engine acceleration in high-performance Mazda rotary applications. This 9.68lb flywheel fits 1989-1995 RX-7 models and 2004-2011 RX-8 models including Base Grand Touring Sport and others. Machined from less material it pairs with Stage 3 clutches for track rally and boosted setups.
Key Features
- 9.68lb Weight: Cuts rotational inertia to enable quicker revving and improved throttle response during shifts
- 4140 Forged Steel Build: Provides strength to handle high torque from turbo or supercharged rotary engines
- One-Piece Design: Minimizes flex for direct power transfer and consistent engagement
- SFI 1.1 Certification: Ensures compliance with racing safety standards for sanctioned events
- Track and Boost Ready: Engineered for forced induction rally and Stage 3 clutch systems with reliable heat dissipation
Product Notes
- Inspect clutch and pilot bearing condition before installation for optimal performance
- Balance verified at factory break-in recommended after 500 miles
- Packaged to prevent shipping damage arrives ready to bolt on
Installation Notes
- Professional installation recommended.
- Torque flywheel bolts to 71-78 ft-lbs in crisscross pattern using rotary-specific procedure
- Compatible with OEM hardware and Competition Clutch pressure plates
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1989-1991 | Mazda | RX-7 | Turbo |
| 1993-1995 | Mazda | RX-7 | Base |
| 1993 | Mazda | RX-7 | R1 |
| 1994-1995 | Mazda | RX-7 | R2 |
| 1993-1995 | Mazda | RX-7 | Touring |
| 2004-2007 | Mazda | RX-8 | Base |
| 2005 | Mazda | RX-8 | Shinka |
| 2008 | Mazda | RX-8 | 40th Anniversary Edition |
| 2008-2011 | Mazda | RX-8 | Grand Touring |
| 2008-2011 | Mazda | RX-8 | Sport |
| 2008-2009 | Mazda | RX-8 | Touring |
Why Choose Competition Clutch?
- Trusted by professional racers in drag road course and rally competitions
- Every flywheel undergoes SFI certification and dyno testing for consistency
- CNC machined to exact tolerances for rotary engine balance and longevity
Frequently Asked Questions
-
Q: Will this fit my 1994 RX-7 R2 or 2006 RX-8 Base?
A: Yes it bolts directly to 1989-1995 RX-7 including R2 and all 2004-2011 RX-8 models with Renesis rotary -
Q: What material and finish does it have?
A: Constructed from 4140 forged steel with black zinc plating for corrosion resistance and heat management -
Q: What is the warranty and install process?
A: Backed by limited lifetime warranty against manufacturing defects requires professional install with proper torque specs
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Sturdy cardboard box 14in x 14in x 5in
- Weight: 9.68 lbs product 11 lbs shipping
Competition Clutch
Competition Clutch is a leading manufacturer of performance clutch systems for sport compact, import, and domestic applications. Trusted by Honda, Subaru, Mitsubishi, and Volkswagen platform builders, Competition Clutch kits offer clearly defined stage ratings from street-friendly organic setups to full race six-puck ceramic systems for maximum torque capacity.Popular UpgradesStage 2 and Stage 3 clutch kits for popular platforms including the Honda Civic, Acura RSX, Subaru WRX and STI, Mitsubishi Evo, and Volkswagen GTI are the most frequently purchased Competition Clutch products. Stage 4 and six-puck clutch kits are the preferred setup for turbocharged builds pushing 400 horsepower and above. Lightweight single-mass flywheels from Competition Clutch are a popular addition to any stage upgrade for better rev response and faster clutch pedal action.What stage Competition Clutch kit do I need?Stage 1 and Stage 2 kits use organic friction materials suited for street driving with mild ...
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