Air Lift Performance 3H Air Suspension Kit for BMW 1 Series F20/F21 (2011-2019) – Complete Air Ride/Air Bag Setup, Digital Height + Pressure Management, Bluetooth App, SLAM Struts, Viair 444C, 4 Gallon Tank

Transform your BMW F20 and F21 with height-plus-pressure managed air suspension

Give your BMW 1 Series hatchback the stance, comfort and control it deserves with a complete air suspension package that blends height sensing with precise pressure management. Switch between real-time pressure control for daily driving and automatic level control when carrying passengers or luggage, all from a sleek handheld controller or your smartphone via Bluetooth. Daily usability, show car lows and confident handling in one proven setup.

We run this system on customer builds and in-house cars, and feedback has been outstanding for ride quality, adjustability and reliability. If you want a bagged F20 or F21 that glides over speed humps, drops hard for photos and dials in for spirited driving, this is the kit.

What is included

• 1/4 inch valve manifold - Part No. 27692
• Hard-wired display and control handset
• Complete wiring harness
• Self-purging water trap for moisture management
• Height sensors - 4 corner set
• Bluetooth app control for iOS and Android
• Viair 444C compressor
• 4 gallon aluminium air tank
• Front SLAM strut kit - Part No. 78555
• Rear SLAM kit - Part No. 78655

Front strut kit - 78555 highlights

• Up to 93 mm drop - 3.7 inch
• Double bellows progressive-rate air springs
• 30-level adjustable damping for comfort to performance
• Proprietary bolt-in camber plates for alignment flexibility
• Threaded, height-adjustable lower strut mounts
• High performance monotube struts
• Motorsport-style spherical upper mounts
• Braided stainless leader air hoses
• No cutting or bodywork required for installation

Rear kit - 78655 highlights

• Up to 129 mm drop - 5.1 inch
• Double bellows progressive-rate air springs
• 30-level adjustable damping
• Roll plates included
• Threaded, adjustable lower shock mounts
• High performance monotube shocks
• No permanent modifications required

Why enthusiasts choose this air management system

• Dual-mode control - run by pressure for quick on-the-fly changes, or by height sensors for automatic levelling with extra load
• Four-corner and tank pressure readouts for precise tuning
• Saved presets for show stance, daily ride height and motorway comfort
• Reliable Viair 444C compressor and lightweight 4 gallon tank for fast, consistent response
• Moisture control via self-purge water trap helps protect valves and sensors

Fitment and installation

Designed for BMW 1 Series F20 and F21 chassis. For professional fitting, calibration and setup, we recommend booking with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

What owners love

Smooth ride on the school run, instant lift for rough roads and a show-stopping drop when parked. The combination of adjustable damping, camber plates and threaded bodies lets you fine-tune handling and fitment, while height sensing keeps the car level when loaded. Our customers consistently report excellent ride quality and dependable performance.

Search-friendly terms

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