AirRex V1 Air Suspension Kit for BMW Z4 E89 (2009+) – Air Ride/Air Bag Kit with Adjustable Air Struts & Shocks, PSI-Based Air Management, WiFi/Smartphone Control, Rise on Start, All Up/Down, Viair 444C Compressor, 3 Gallon Tank – Bolt-On Lowering

Premium adjustable air suspension for BMW Z4 E89 2009 onwards

Give your BMW Z4 E89 the stance, comfort and control it deserves with this comprehensive AirRex V1 air ride package. This is a complete vehicle-specific conversion that replaces conventional springs with performance air springs and matched monotube dampers for low cruising, smooth daily driving and confident handling. Expect show car lows, speed bump practicality and effortless height changes from the driver’s seat.

Pressure-referenced management with wireless phone control

• PSI-based control references air pressure at each corner for consistent ride height and repeatable results.
• Built-in WiFi connectivity for iOS and Android so you can adjust the system using your smartphone app or the supplied handheld controller.
• All Up and All Down functions for instant lift or drop when you need it.
• Rise on Start automatically raises the car when you fire it up, ideal for driveways and speed humps.
• Latest touchscreen remote for quick, intuitive adjustments and simple preset selection.

Direct-fit air struts engineered for the E89 chassis

These vehicle-specific AirRex struts mount to the original fixing points for a straightforward, bolt-on install that mirrors factory geometry. Every air spring and damper assembly is validated for load and pressure, then lab tested from minus 40 °C to plus 60 °C for durability in real-world conditions.

Front assembly

• 12-stage damping adjustable monotube shock absorbers for precise control and ride refinement.
• Camber adjustable top mounts where the chassis allows to fine tune alignment.
• Threaded height adjustable bodies to dial in the perfect ride height and stance.
• High quality bellow air springs, double or triple bellow depending on application needs.

Rear assembly

• 12-stage damping adjustable monotube dampers to balance comfort with performance.
• Height adjustable design for accurate ride height tuning across the rear axle.
• Bellowed air springs with slim double bellow options used on tighter chassis for improved response.

Matched AirRex control hardware for reliability and speed

AirRex management pairs perfectly with the struts for quick response, dependable operation and simple day-to-day use. Whether you are loading up for a trip, parking low for a meet or navigating rough roads, the system puts smooth, quiet adjustment at your fingertips.

What you get in the kit

• AirRex touchscreen wireless controller
• AirRex WiFi-enabled control module
• Single Viair 444C black compressor
• 3 gallon AirRex tank with integrated water removal system
• AirRex ECU
• AirRex manifold
• Check valve
• AirRex power and earth cables
• 1/4 inch air line
• AirRex key chain
• Fuses
• USB charge cable

Why enthusiasts choose this Z4 E89 air setup

• Vehicle-specific solution for the 2009 onwards BMW Z4 E89 roadster.
• Bolt-on installation using OEM mounting points for a clean, reversible conversion.
• Adjustable damping monotube shocks for engaging handling and long-distance comfort.
• Pressure-referenced management for predictable ride height and repeatable presets.
• Wireless phone control, Rise on Start and one-touch lift or drop for daily convenience.

Real-world results

We have fitted and run AirRex on customer cars and our own projects, and the feedback is consistently excellent. Owners love the smooth ride quality, the dramatic drop, the ease of adjustment and the reliability. If you want your Z4 bagged with a premium system that looks incredible and works flawlessly day after day, this package delivers.

Professional installation

For expert fitting, book your install with MJ Modifications in Warwickshire. Request a quotation: info@mjmodifications.co.uk

Compatibility

BMW Z4 E89, 2009 onwards.

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