SKU: FW-037-AL
Clutch Masters 02-06 Acura RSX 2.0L 5 Sp (High Rev) / RSX 2.0L Type-S 6 Sp (High Rev) / 02-11 Honda Civic Si Lightweight Aluminum Flywheel
Clutch Masters FW-037-AL is a lightweight aluminum flywheel designed for high-revving K20 engines in 2002-2006 Acura RSX Base 5-speed and Type-S 6-speed models plus 2002-2011 Honda Civic Si. This flywheel slashes rotational mass from stock 22 lbs to 9.5 lbs enabling quicker engine response faster shifts and stronger acceleration on street or track. Pair it with Clutch Masters clutch kits for complete performance upgrades.
Key Features
- Lightweight Aluminum Build: 6061-T6 billet aluminum construction drops weight by over 50 percent compared to OEM steel flywheel for immediate throttle response and reduced gyroscopic effects.
- Replaceable Ring Gear: Heat-treated chromoly steel ring gear resists wear and can be replaced without buying a new flywheel extending service life in demanding conditions.
- High RPM Engineering: Built specifically for high-rev applications with reinforced design to handle 9000+ RPM without flex or failure.
- Precision Balancing: Multi-point balancing ensures vibration-free operation across entire RPM range preserving bearings and drivetrain components.
- SFI 1.2 Certification: Meets rigorous safety standards for competition use providing confidence in racing environments.
Product Notes
- Black anodized finish resists corrosion and simplifies cleaning after track sessions.
- Compatible with stock clutch pressure plates or Clutch Masters performance clutches for seamless integration.
- Ships ready to install with no break-in required unlike organic clutch materials.
Installation Notes
- Professional installation recommended.
- Use OEM or ARP flywheel bolt kit torqued to 87 ft-lbs in crisscross pattern.
- Aligns perfectly with K20A2 K20A3 and K20Z3 crankshafts no modifications needed.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2006 | Acura | RSX | Base |
| 2002-2006 | Acura | RSX | Type-S |
| 2008 | Honda | Civic | MUGEN Si |
| 2002-2011 | Honda | Civic | Si |
Why Choose Clutch Masters?
- Over 35 years crafting drivetrain components for import tuners and racers worldwide.
- Manufactured in USA with CNC machining for exact tolerances and dyno-verified performance gains.
- Backed by real-world testing in NHRA drag racing and SCCA track events.
Frequently Asked Questions
- Q: Will FW-037-AL fit my 2004 Acura RSX Type-S 6-speed?
A: Yes it bolts directly to 2002-2006 RSX Type-S 6-speed high-rev models with K20A2 engine no adapters required. - Q: What material is the flywheel and ring gear made from?
A: Body is 6061-T6 billet aluminum for lightness ring gear is heat-treated chromoly steel for durability and easy starter engagement. - Q: What warranty coverage does it have?
A: Clutch Masters offers limited lifetime warranty on manufacturing defects when installed by certified shop.
Shipping & Handling
- Method: Standard ground shipping
- Availability: In stock – ships same or next business day
- Packaging: Protective cardboard box 14 x 14 x 6 inches
- Weight: 9.5 lbs product 12 lbs shipping
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