Bilstein B12 Pro Kit Suspension (Springs & Shocks) for BMW 3 Series F30 & 4 Series F32 F36 RWD Lowering Kit Part No. 46-223661 (Fits 320i 328i 330i 335i 418d 420d 425d 428i 430i)

Bilstein B12 Fixed-Rate Spring and Damper Package for BMW F30 F32 F36 RWD Part No. 46-223661

Give your BMW F3x real fast-road composure and a purposeful drop with the genuine Bilstein B12 package, part number 46-223661. This carefully matched set of sport springs and performance shock absorbers transforms steering response, reduces roll and squat, and delivers that clean, even stance enthusiasts want without compromising daily drivability. Designed as a direct replacement kit for rear wheel drive models, it is the ideal upgrade for owners seeking sharper handling and a confident ride on British roads.

Looking for a BMW F30 shock absorber kit, BMW F32 spring and damper set, BMW F36 sport shocks and springs, BMW 3 Series ride height reduction, BMW 4 Series drop kit, or Bilstein 46-223661? This is the proven fast-road solution for improved cornering stability, crisp turn-in and a more planted feel in every situation.

Why drivers choose this Bilstein kit

• Matched spring rates and damping for balance, grip and predictability
• Noticeably flatter cornering with reassuring high-speed stability
• Ride height reduction for a cleaner stance without constant scraping
• Direct-fit, bolt-on replacement using your BMW’s original mounting points
• Static drop up to 50 mm depending on application with technical certifications
• A smarter upgrade than tired OEM sport setups for road-focused performance

What you will feel on the road

• Sharper front-end bite and improved feedback through the wheel
• More grip on B-roads with better control over bumps and undulations
• Composed motorway ride with less float and pitch
• Confident braking and traction thanks to reduced weight transfer

Not a height-adjustable coilover system. The B12 is a fixed-lowering spring and shock combo engineered to deliver the stance, handling and comfort most owners want, minus the complexity of adjusters.

Compatibility BMW rear wheel drive only

• BMW 3 Series F30 Saloon 11.11 to 10.18
  • 316i, 318i, 320i, 328i, 330i, 335i, 316d, 318d, 320d, 325d
• BMW 4 Series F32 Coupé 07.13 onward
  • 418i, 420i, 428i, 430i, 418d, 420d, 425d
• BMW 4 Series F36 Gran Coupé 03.14 onward
  • 418i, 420i, 428i, 430i, 418d, 420d, 425d

Important: fits rear wheel drive variants only.

What’s included

A complete matched set of sport springs and performance dampers for front and rear, engineered for your specific BMW platform.

Part number

46-223661

Manufacturer

Bilstein

Warranty

2 year Bilstein warranty

Professional installation

For fitting and alignment, choose MJ Modifications in Warwickshire. We install these kits on customer cars and our own builds, and the feedback on ride quality, stance and confidence is consistently excellent. Request a fitting quote at info@mjmodifications.co.uk.

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