Bilstein B12 Pro-Kit Suspension Kit - BMW 3 Series E93 Convertible (2006-2013), incl. M3 - B8 Dampers + Eibach Pro-Kit Springs Fixed-Height Lowering Kit - 46-180704

Bilstein B12 Suspension System for BMW E93 Cabriolet inc. M3 — Part No. 46-180704

Transform the way your drop-top 3 Series drives with the Bilstein B12 system, part number 46-180704. This carefully matched spring and damper package pairs Bilstein B8 sport shock absorbers with Eibach progressive-rate coils to deliver a lower, tighter and more composed BMW E93 convertible while keeping day-to-day comfort intact. If you want a road-focused performance upgrade that sharpens steering response, improves body control and gives your E93 a purposeful stance, this is the kit enthusiasts trust.

We have installed and run this setup ourselves on customer cars and feedback is consistently excellent. Owners report a planted feel, cleaner turn-in, stronger mid-corner stability and a refined ride on British roads. It is a true OEM-plus handling upgrade that makes your E93 feel newer, tighter and more confidence-inspiring without the hassle of height adjustment.

Why this package

• Sport shock absorbers tuned to progressive springs for balanced chassis control and comfort.
• Approximate ride height reduction of 10 mm to 30 mm depending on application for a cleaner stance and reduced wheelarch gap.
• Monotube gas pressure technology for precise damping, fade resistance and repeatable performance.
• Reduced body roll, improved traction and better high-speed stability for fast-road use.
• Great on UK B-roads and motorways — composed over bumps, calm at speed.
• German TÜV approved with the Bilstein and Eibach engineering pedigree.
• Direct bolt-on replacement for tired factory shocks and springs — no coding required.
• Thoroughly proven on UK cars for reliability and durability.

Perfect if you are considering

• A fixed-height solution instead of height-adjustable coilovers.
• A fast-road setup that feels taut and responsive without going harsh.
• A shock and spring bundle that is pre-matched for the BMW E93 chassis, including the E93 M3.

Vehicle fitment

• BMW 3 Series E93 Convertible, 2006 to 2013
• Including BMW E93 M3

Technical highlights

• Bilstein B8 sport dampers — monotube gas design for sharp response and control.
• Eibach progressive springs — supple on light inputs, firmer when pushed.
• Factory-style mounting points for straightforward installation.
• Fixed ride height for a fit-and-forget, maintenance-light solution.

Identifiers

• Main part number: 46-180704
• Also referenced as: BILSTEIN-46-180704
• EAN: 4025258674106
• UPC: 651860672502

Fitting and setup

Professional installation recommended. For fitting, alignment and setup, choose MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk and our team will be happy to help with booking and advice.

Compatibility check before dispatch

We verify fitment before shipping. Provide your UK registration or the last 7 of your VIN at checkout so we can confirm suitability for your E93 or E93 M3.

What owners say

Customers love the transformation — tighter front end, calmer body movements and a premium ride quality that suits British tarmac. We have used this kit on our own builds and it delivers time and again.

Search-friendly terms

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