Bilstein 46-180650 Suspension Kit - Front and Rear

Bilstein B12 Pro-Kit Suspension Kit

The Bilstein B12 (Pro-Kit) suspension kit combines Bilstein Performance dampers with Eibach Pro-Kit springs for a fixed-height lowering setup tuned for specific vehicle applications. This kit is built for drivers looking for improved suspension response, controlled ride height, and a cleaner stance on the BMW 335i and BMW 335is.

Key Features

• Bilstein B12 (Pro-Kit) suspension kit with Bilstein Performance dampers and Eibach Pro-Kit springs
• Moderate lowering range of 24-40 mm depending on application
• Monotube internal design for consistent damping response
• Finish: yellow dampers with dark grey springs
• Application-tuned for fixed-height lowering and balanced suspension dynamics
• Part number 46-180650 for fitment-specific ordering

Product Details

Bilstein’s B12 (Pro-Kit) line is aimed at drivers who want a matched suspension package rather than mixing springs and dampers separately. The dampers and springs are selected for the application to support controlled lowering, improved road feel, and a more settled chassis attitude. For BMW 335i and BMW 335is models, this setup is listed with rear lowered height notes of 25 mm and up to 1090 kg axle load, making it a fitment-focused solution for 2007-2013 BMW 335i and 2011-2013 BMW 335is applications. Part number 46-180650 is also referenced in interchange listings for E10-20-014-13-22 and E90-20-014-13-22.

This Bilstein Shock Absorbers B12 (Pro-Kit) kit is a practical choice for BMW 335i suspension kit and BMW 335is lowering kit searches where the buyer needs a direct, application-specific package. The monotube damper design supports consistent performance, while the matched spring rate helps maintain the intended ride height and suspension balance.

What It Helps Address

• Excessive factory ride height on BMW 335i and BMW 335is models
• Loose or less controlled suspension response during cornering and braking
• Uneven stance after replacing worn springs and dampers separately
• Need for a matched lowering suspension package for street use
• Searches for 2007-2013 BMW 335i front and rear suspension kit or 2011-2013 BMW 335is front and rear suspension kit

Installation Notes and Tips

Verify vehicle year, model, and axle load before ordering. This kit is listed for front and rear positions and should be matched to the exact application notes shown for the BMW 335i and BMW 335is. Because the system is tuned as a fixed-height package, final ride height depends on the specific vehicle configuration and the listed lowering range. Professional installation and a post-installation alignment are recommended after suspension replacement.

Quality Assurance

Bilstein is known for performance suspension engineering, and the B12 (Pro-Kit) series pairs dampers and springs as an application-matched system for consistent fitment and ride characteristics. Part number 46-180650 is built for the specified BMW applications and follows the B12 Pro-Kit platform’s fixed-height lowering approach.