Bilstein 46-000132 Suspension Kit - Front and Rear

Bilstein B12 Suspension Kit for BMW 325i

The Bilstein B12 (Pro-Kit) suspension kit combines Bilstein Performance dampers with Eibach Pro-Kit springs for a fixed-height lowering setup tuned for the application. This kit is built for 1987-1993 BMW 325i models with a 51mm outside strut diameter, delivering a balanced upgrade for street use and sharper suspension response.

Key Features

• Complete suspension kit with Bilstein dampers and Eibach Pro-Kit springs
• Moderate lowering range of 24-40 mm, depending on application
• Monotube damper design for consistent damping performance
• Yellow dampers with dark grey springs
• Application-specific tuning for BMW 325i fitment
• Part number 46-000132 for direct reference

Product Details

Bilstein B12 (Pro-Kit) suspension kits are engineered as a matched damper-and-spring package rather than a mix-and-match setup. For the BMW 325i, part number 46-000132 pairs Bilstein monotube shock absorbers with Eibach lowering springs to reduce ride height while maintaining a controlled, fixed-height suspension profile. The B12 (Pro-Kit) line focuses on a practical balance of suspension dynamics, appearance, and component quality, making it a fitment-specific choice for drivers seeking a lower stance without changing the vehicle’s core suspension layout. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Excessive factory ride height on BMW 325i models
• Loose or inconsistent body control during cornering
• Worn dampers that no longer control spring movement properly
• Uneven suspension response after age-related component fatigue
• Need for a matched lowering solution for 1987-1993 BMW 325i, front and rear

Installation Notes

Compatible With 1987-1993 BMW 325i, front and rear, with 51mm outside strut diameter. Verify strut diameter and suspension configuration before installation. Because this is a complete suspension kit, installation should be performed with proper spring-compression tools and standard suspension service procedures. Part number 46-000132 should be matched to the vehicle’s exact fitment details before ordering.

Quality Assurance

Bilstein uses a monotube damper design and application-specific tuning in the B12 (Pro-Kit) series to support consistent suspension performance across the intended vehicle platform. The kit is built around matched components from Bilstein and Eibach for a coordinated lowering setup on the BMW 325i.