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
Bilstein
Bilstein shocks and suspension are stocked at Black Ops Auto Works across the full product range, including B4 OE replacement shocks, B6 performance shocks, B8 5100 ride height adjustable shocks, B8 6112 and 8112 suspension kits, B8 TerraSport lift kits, B12 Pro-Kit systems, B14 coilovers, B16 DampTronic suspension, and EVO Series kits. Every product is filterable by year, make, model, trim, and drivetrain so the correct Bilstein part ships the first time. Black Ops Auto Works carries 2,108 Bilstein SKUs spanning trucks, SUVs, crossovers, and European performance platforms. What This Collection Covers Bilstein is a monotube shock and suspension manufacturer known for consistent damping control across a wide range of applications, from OE-style replacement to serious off-road lift setups to European performance suspension. Product Categories B4 OE replacement shocks and struts, B6 performance shocks, B8 5100 and 5160 shocks, B8 6100 and 6112 suspension kits, B8 8100 and 8112 rese...
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