KW Variant 3 (V3) Inox-Line Coilovers & Suspension Kit for BMW 1 Series M135i/M140i F20 F21 – RWD 2WD – Non-EDC Without Adaptive Dampers – Height Adjustable Lowering Kit – Adjustable Shocks & Struts – Chassis Codes 1K2, 1K4

Transform your BMW 1 Series handling and stance

Give your BMW M135i or M140i the fast-road and track-ready suspension it deserves. This height-adjustable suspension kit delivers precise control, sharper turn-in and impressive ride quality on British roads, with the flexibility to tailor your setup for daily comfort or weekend blasts.

Vehicle compatibility

• BMW 1 Series M135i and M140i, F20 and F21 chassis
• Rear-wheel drive models only, non-adaptive cars without electronic dampers, no EDC
• Chassis codes: 1K2 and 1K4

Lowering range

• Front: 25 to 50 mm
• Rear: 30 to 55 mm

Approved axle loads

• Front: 921 to 1090 kg
• Rear: up to 1230 kg

Why enthusiasts choose this kit

• Independent damping control with easy click adjustment for rebound and compression
• 16 clicks of rebound for fine control of body movement and high-speed stability
• 12 clicks of compression to dial in steering response, roll support and traction
• Stainless-steel damper bodies for excellent corrosion resistance and long-term reliability
• Ride height adjustability for the perfect road presence and practical ground clearance
• High-quality twin-tube shock absorbers and matched springs for predictable, confidence-inspiring behaviour

Real-world results

We have fitted these on customer M135i and M140i builds and run them on our own projects. Feedback has been consistently positive, with drivers praising the improved cornering grip, reduced body roll and the way the car remains compliant on uneven UK tarmac. Ideal for fast road, B-road drives and track days.

Built for the long haul

Precision-machined stainless components resist rust and harsh weather, while the durable threaded bodies and composite adjuster collars make ride height changes straightforward even after years of use. This is a premium suspension upgrade designed to perform season after season.

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Professional fitting

Supply and installation available at MJ Modifications in Warwickshire. For a fitting quote or setup advice, email info@mjmodifications.co.uk.

Note: Ensure your vehicle falls within the listed axle load limits and specification before purchase.