Bilstein B12 Pro-Kit Suspension (Springs & Shocks) for BMW 3 Series F31 Touring & F34 GT, 4 Series F36 Gran Coupe 2012-2018 - Up to 50mm Lowering - Fits 325d 330i 430i - Part 46-229793

Bilstein B12 Pro Kit Sport Suspension for BMW F31, F34 and F36

Looking to sharpen the way your BMW turns, brakes and grips while giving it a purposeful, level stance? This Bilstein B12 Pro Kit sport spring and damper package is the fast-road upgrade our BMW customers love. It replaces tired factory components with precision-matched shock absorbers and lowering springs for a lower centre of gravity, crisp steering feel and dependable control on British roads.

Part number: 46-229793

What you will notice

• Ride height drop up to 50 mm depending on application for that clean OEM plus look
• Reduced body roll, less nose dive and squat, more stability at speed
• Predictable damping for confidence on B-roads and smooth motorway composure
• Matched spring rates and gas-pressure shock tuning for everyday comfort with real performance
• Technical certification included for peace of mind

Why enthusiasts choose this kit

We run this package on our own F3x builds and have supplied and fitted it for many customers. Feedback is consistently positive: sharper turn-in, planted cornering and a smarter stance without the crashiness you get from cheap lowering springs. It is a proven chassis upgrade that feels premium from the first mile.

What is included

• Four Bilstein performance shock absorbers
• Four vehicle-specific lowering springs engineered to work as a matched set
• All parts designed as direct replacements for straightforward installation
• 2 year Bilstein warranty

Vehicle fitment

• BMW 3 Series F31 Touring 2012-2018
  • 316d, 316i, 318d, 318i, 320d, 320i, 328i, 330i
• BMW 3 Series F34 Gran Turismo 2012-2018
  • 318d, 318i, 320d, 320i, 328i, 330i
• BMW 4 Series F36 Gran Coupe 2014-2018
  • 418d, 420d, 420i, 425d, 428i, 430i

Popular engines often searched for include 325d, 330i and 430i.

Driver benefits

• Fast-road handling with road-friendly comfort
• Enhanced grip and feedback for confident cornering
• Lower, flatter stance that complements sensible wheel and tyre setups
• OEM-quality fitment using standard mounting points

Fitting and alignment

Professional installation is recommended for best results. Book fitting with MJ Modifications in Warwickshire and request a tailored quote at info@mjmodifications.co.uk. We also advise a full four-wheel alignment after installation.

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