Bilstein B12 Pro-Kit Suspension Kit for BMW E93 Convertible inc. M3 — Part No. BILSTEIN-46-180704
Upgrade your BMW E93 with the Bilstein B12 Pro-Kit, part number BILSTEIN-46-180704. This fixed-height sports suspension kit combines Bilstein B8 performance shock absorbers with Eibach Pro-Kit progressive springs to deliver a precision lowering solution for the BMW 3 Series Convertible E93, including the E93 M3. If you are searching for BMW E93 suspension upgrades, E93 M3 suspension, Bilstein B12, Bilstein B8 shocks, Eibach Pro-Kit springs, lowering kit, shocks and springs package, or a fast road setup for daily use, this is the proven choice.
Expect sharper turn-in, reduced body roll and a confident, planted stance without compromising everyday comfort. We have installed and run this kit ourselves, and customer feedback is consistently positive on ride quality, stability and real-world performance.
Key Features and Benefits
- Matched system: Bilstein B8 performance dampers paired with Eibach Pro-Kit progressive springs for optimal control and comfort.
- Lowering range: approximately 10 mm to 30 mm depending on application for a purposeful stance and improved aerodynamics.
- Bilstein monotube gas-pressure technology for precise response and consistent performance under spirited driving.
- Enhanced handling: reduced body roll, improved grip and confident high-speed stability.
- Daily-driveable upgrade: fast-road feel with OE-level refinement and durability.
- German TÜV certification and Bilstein-Eibach engineering pedigree.
- Direct-fit replacement for BMW E93 shocks and springs with no coding required.
- Extensive testing for long-term reliability on UK roads.
Why Choose Bilstein B12 for BMW E93
- Ideal if you are considering BMW E93 coilovers but prefer a fixed-height, expertly tuned spring and damper package.
- Delivers coilover-level control and stance without the maintenance of height-adjustable systems.
- Perfect for E93 owners seeking a balanced road-biased setup that feels composed in corners and compliant over poor surfaces.
Vehicle Compatibility
- BMW 3 Series Convertible E93, 2006 to 2013
- Including BMW E93 M3
Technical Highlights
- Shock absorber type: gas pressure, monotube design for fade-free performance.
- Progressive-rate Eibach Pro-Kit springs for comfort on small bumps and firmness when pushed.
- Fine-tuned damper and spring pairing for the BMW E93 chassis.
- Upside-down monotube technology available on select applications within the B12 range.
Part Numbers and Identifiers
- Main part number: BILSTEIN-46-180704
- EAN: 4025258674106
- UPC: 651860672502
Fitting and Setup
Professional installation is recommended. For fitting in the UK, choose Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com and our team will be happy to help with booking and setup advice.
Compatibility Check Before Dispatch
We verify fitment before shipping. Simply provide your UK registration or the last 7 digits of your VIN at checkout so we can confirm compatibility with your BMW E93 or E93 M3.
What Customers Say
Our customers love the way the Bilstein B12 Pro-Kit transforms the BMW E93. Feedback highlights a tighter, more responsive front end, improved mid-corner composure and a refined ride that feels premium on British roads.
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