KW V3 Variant 3 Inox-Line Coilover Suspension Kit - BMW 1 Series F20/F21 M135i M140i xDrive AWD/4WD - Height Adjustable 30-55mm, Rebound & Compression Adjustable - No EDC/Adaptive Dampers - 1K2/1K4

Transform the way your BMW 1 Series drives with this premium height-adjustable suspension kit for M135i and M140i xDrive models. Built for fast-road confidence and track-ready control, this is the go-to upgrade for owners who want sharper turn in, more grip and a cleaner stance without sacrificing everyday comfort.

Perfect fitment for the BMW 1 Series F20 and F21 platform including M135i xDrive and M140i xDrive on the 1K2 and 1K4 chassis codes. Suitable for cars without factory adaptive damping or EDC. Designed for all wheel drive models.

Why enthusiasts choose this kit

• Independent bump and rebound adjustment for precise handling balance
• Tool-free click adjusters with a wide tuning window for road or circuit
• Stainless steel shock bodies for outstanding corrosion resistance in UK weather
• Consistent damping performance and long service life
• Excellent ride quality with a big step up in body control and stability

We run these on customer builds and our own projects. The feedback is consistently the same: tighter steering response, flatter cornering, better traction out of bends and a more composed ride on poor B-roads. If you are chasing that fast-road feel with genuine adjustability, this setup delivers.

Ride height range

• Front lowering: 30 to 55 mm
• Rear lowering: 30 to 55 mm

Click-by-click damping control

• Rebound adjustment: 16 clicks to fine-tune comfort, grip and stability
• Compression adjustment: 12 clicks to dial in body roll, pitch and support under braking

Maximum permitted axle loads

• Front: 1001 to 1020 kg
• Rear: up to 1120 kg

Compatibility and search-friendly terms

BMW 1 Series suspension upgrade for F20 F21 xDrive, M135i xDrive coilover kit, M140i xDrive adjustable suspension, AWD 1 Series performance shocks and springs, height adjustable suspension 30-55 mm, fast road and track setup, stainless steel coilover kit for UK roads, N55 M135i suspension, B58 M140i suspension, without electronic dampers or EDC, 4WD BMW 1 Series handling upgrade, 1K2 1K4 platform suspension.

What you can expect

• Sharper response and improved front-end bite
• Reduced body roll and squat without a harsh ride
• Enhanced traction on xDrive models in all conditions
• Corrosion-resistant components that keep adjusting freely year after year

Professional fitting and setup

For installation, alignment and a bespoke fast-road or track-day setup, we recommend booking with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote and expert advice.

Note: For vehicles without electronic dampers. Always verify axle loads and model compatibility before purchase.