SKU: 24-348201 | UPC: 651860960876
Bilstein 03-08 BMW Z4 (E85) B8 Performance Plus Rear Monotube Shock Absorber
Bilstein B8 Performance Plus rear monotube shock absorbers upgrade stock dampers on 2003-2008 BMW Z4 E85 models including 2.5i, 3.0i, Roadster 3.0i, Roadster 3.0si and Coupe 3.0si. Designed to pair with aftermarket lowering springs, these shocks feature vehicle-specific valve settings for sharp handling response. Monotube construction runs cooler for consistent performance during spirited driving.
Key Features
- Monotube Design: Single-tube setup dissipates heat faster for stable damping on track or street
- Application-Specific Valving: Tuned piston valves match BMW Z4 suspension dynamics for balanced control
- Lowering Spring Match: Extended length supports 30-50mm drop while maintaining ride quality
- OE-Level Testing: Each shock undergoes endurance tests to match or beat factory standards
- Direct Bolt-On Fit: No modifications needed for 2003-2008 Z4 E85 rear suspension
Product Notes
- Pair with front Bilstein 24-348200 for complete setup
- Inspect springs before install to ensure compatibility
- Ships as single rear shock absorber
Installation Notes
- Professional installation recommended.
- Compressed length 10.24 inches, extended 15.71 inches, travel 5.47 inches
- Stem top mount, two-bolt bottom mount with 10.6mm bolt holes
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2005 | BMW | Z4 | 2.5i |
| 2003-2005 | BMW | Z4 | 3.0i |
| 2006-2008 | BMW | Z4 Coupe | 3.0si |
| 2006-2008 | BMW | Z4 Roadster | 3.0i |
| 2006-2008 | BMW | Z4 Roadster | 3.0si |
Why Choose Bilstein?
- Decades of motorsport engineering for BMW applications
- Gas-pressurized monotubes for fade-free damping
- Precision manufacturing in Germany
Frequently Asked Questions
- Q: Does this fit E85 Z4 models with factory height?
A: Best results with lowering springs up to 1.5 inches, but installs on stock height - Q: What material is the shock body?
A: Aluminum monotube body with zinc-plated steel components for corrosion resistance
Q: What is the warranty?
A: Limited lifetime warranty against manufacturing defects when installed properly
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: Individual box 24 x 7.3 x 7.3 inches
- Weight: 6 lbs
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