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 kits for Honda K, B, and D-series, Subaru WRX and STI EJ, Nissan 350Z, 370Z, 240SX, and 400Z, Mitsubishi EVO and DSM, Mazda Miata and RX-7, and sport compact applications are stocked at Black Ops Auto Works. Shop Stage 1 to Stage 5 clutch kits, twin disc clutches, lightweight flywheels, clutch discs, pressure plates, release bearings, and sport compact drivetrain parts for proven street, drag, road course, and high horsepower engine builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 197 Competition Clutch SKUs across the fitments and build levels enthusiasts actually use. What Competition Clutch Covers Competition Clutch offers staged clutch kits, twin and triple disc systems, lightweight flywheels, discs, pressure plates, release bearings, forks, and service components for sport compact, import, and selected domestic performance cars. Stage selection exp...
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Transmissions
Transmission and drivetrain hardware for manual and automatic platforms are stocked at Black Ops Auto Works. Shop flywheels, flexplates, transmission crossmembers, mounts, coolers, valve bodies, shifters, shifter bushings, release bearings, slave cylinders, U-joints, and transmission rebuild kits for Subaru WRX and STI, Dodge Cummins diesel, GM G-Body and F-Body, BMW B58 and S58, Nissan 350Z, and Toyota GR Corolla platforms. Every part is filterable by year, make, model, and transmission type so builders can confirm the correct fitment before ordering. Black Ops Auto Works carries 1,322 transmission and drivetrain SKUs. What This Category Covers This collection spans the hardware that connects the engine to the drivetrain and manages gear selection, including flywheels, flexplates, transmission crossmembers, bell housings, transmission mounts, pans, coolers, filters, valve bodies, transmission internals, shifters, shifter bushings and cables, release bearings, slave cylinders, U...
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