WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.Upgrading to a lightweight single-mass flywheel solves the slow rev response and high rotational inertia of the heavy factory dual-mass unit. The ACT 601015 XACT Prolite Clutch Flywheel drops rotating mass down to a mere 9.9 pounds, drastically sharpening throttle response and acceleration. Engineered specifically for high-revving track use, this single-piece chromoly steel forging eliminates the failure points of multi-piece designs while delivering uniform heat transfer. Expect mild to moderate gear rattle after conversion, as is standard when deleting the factory dual-mass damper.
Vehicle Fitment for ACT 601015
The ACT 601015 XACT Prolite Flywheel fits 2001, 2002, 2003, 2004, 2005, and 2006 BMW M3 models equipped with the 3.2L inline six-cylinder engine (E46 chassis). See the Vehicle Fitment table for full year-by-year fitment. For any fitment or compatibility questions, please email Sales@xlr8.com, our team is happy to help confirm fit for your specific vehicle.
Performance Highlights
- Product Weight: 9.9 lbs
- SFI Rating: 1.1 Certified
- Inertia Level: Ultra-Low (Prolite series)
- Construction: One-piece forged Chromoly steel
Key Features and Benefits
- CNC machined and dynamically computer balanced for smooth high-RPM operation
- Induction-hardened 113-tooth ring gear resists starter engagement wear
- Uniform heat transfer prevents localized hot spots and warped friction faces
- Serviceable design allows the friction surface to be resurfaced
- Includes required M12-1.5 x 30mm flywheel mounting bolts
- Backed by the industry-leading one-year warranty from ACT
Specifications
- Product Weight: 9.9 lbs
- Material: Chromoly Steel
- Type: Prolite
- Tooth Quantity: 113
- Mounting Hole Quantity: 8
- Friction Surface Diameter: 9.4 in (240mm)
- Friction Surface Configuration: Recessed
- Engine Balance: Internal
- SFI Rating: 1.1
- Replaceable Friction Surface: No
- Mounting Hardware Included: Yes
What's in the Box
- ACT Prolite Flywheel (601015)
- Eight (8) M12-1.5 x 30mm Flywheel Bolts
Installation
Professional installation is highly recommended because proper torque sequencing is critical on the BMW S54 crankshaft flange. This single-mass flywheel converts the original setup, meaning increased transmission gear rattle at idle is normal and expected. Standard thread-locking compound should be applied to the supplied mounting bolts during assembly. Review the complete manufacturer guidelines before starting: ACT General Installation Instructions (PDF)
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