SKU: CSB071
Spec Stage 1 Clutch Kit for 2003-2005 BMW Z4/325/330 6-Spd & 2004-2005 530i
This SPEC Stage 1 Clutch Kit (SB071) upgrades the factory clutch in 6-speed manual BMW E46 and E60 models with a high-performance pressure plate and organic disc for reliable power handling. It fits 2003-2005 BMW 325Ci/i/xi, 330Ci/i/xi, Z4 3.0i, and 2004-2005 530i, delivering smooth engagement and increased torque capacity up to 325 ft-lbs for spirited driving without sacrificing comfort.
Key Features
- Increased Torque Capacity: Handles up to 325 ft-lbs, perfect for modified engines with bolt-ons like intakes, exhausts, and tunes while maintaining stock-like pedal feel.
- Performance Organic Disc: Provides quick shifts and progressive engagement for track days or daily commutes, resisting wear under high heat.
- High Clamp Load Pressure Plate: Delivers consistent clamping force for dependable power transfer in 6-speed transmissions.
- Quality Throwout Bearing: Ensures smooth operation and reduces noise during clutch disengagement.
- Alignment Tool Included: Simplifies installation for precise centering and optimal performance from day one.
Product Notes
- Flywheel resurfacing or replacement recommended for best results with stock or lightweight flywheels.
- Follow 500-mile break-in procedure with no aggressive launches to extend clutch life.
- Ships in protective packaging to prevent damage during transit.
Installation Notes
- Professional installation recommended.
- Transmission removal required. use proper flywheel locking tool for BMW M54/S54 engines.
- Compatible with OEM or SPEC flywheels. pilot bearing included for complete refresh.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2005 | BMW | 325Ci | Base |
| 2003-2005 | BMW | 325i | Base |
| 2003-2005 | BMW | 325xi | Base |
| 2003-2005 | BMW | 330Ci | Base |
| 2003-2005 | BMW | 330i | Base |
| 2003-2005 | BMW | 330xi | Base |
| 2004-2005 | BMW | 530i | Base |
| 2003-2005 | BMW | Z4 | 3.0i |
Why Choose SPEC?
- Proven track record in motorsports with clutches trusted by racers worldwide.
- Dyno-tested components ensure real-world durability and performance gains.
- Precision engineering matches BMW tolerances for seamless integration.
Frequently Asked Questions
-
Q: Does this fit my 2004 BMW 330i with 6-speed manual?
A: Yes, SB071 Stage 1 kit fits all 2003-2005 BMW E46 325/330 models with 6-speed Getrag 420G transmission, including Ci, i, and xi variants. -
Q: What materials are used in the clutch disc and pressure plate?
A: Organic friction material disc for smooth engagement paired with heat-treated diaphragm pressure plate for strength and fade resistance. -
Q: What is the warranty and installation support?
A: Backed by SPEC's limited warranty. includes alignment tool and instructions. Professional install advised for warranty validity.
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Secure box measuring 14 x 14 x 6 inches
- Weight: 28.6 lbs
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