BMW M Performance HAS Height Adjustable Lowering Springs Kit for G80 M3 & G82 M4 2021+ (Competition/xDrive) - EDC/Adaptive Damper Compatible, 5-20mm Drop - Genuine OEM Suspension Upgrade - Coilover Alternative - Part 31305A2D979

BMW G8X M3 M4 M Performance Adjustable Spring Set, Genuine OEM, Part Number 31305A2D979

Transform the stance, grip and steering precision of your G80 M3 or G82 M4 with the official BMW M Performance adjustable spring set. This factory-engineered HAS solution gives coilover-style ride height tuning while retaining your original adaptive dampers for daily comfort and confidence on B-roads and track days. Part number 31305A2D979.

Why enthusiasts choose this OEM upgrade

• Fine-tune ride height front and rear 5 to 20 mm for the perfect arch-to-tyre fitment and road presence
• Works seamlessly with Electronic Damper Control, so Comfort, Sport and Sport Plus remain fully functional
• Sharper turn-in and flatter cornering, with compliant road manners for everyday use
• Designed and validated by BMW for the G8X platform, so fitment and reliability are spot on
• Corrosion-resistant threaded perches for precise, repeatable adjustment

How this HAS system delivers results

BMW replaces the standard spring seats with threaded height-adjustable perches and matched springs. You keep your OE shock absorbers and adaptive control, but gain the ability to set stance and rake to your preference for wheels and tyres, alignment targets and driving style.

Adjustment range

5 to 20 mm of ride-height tuning, front and rear.

What is included

• Front adjustable spring perches with matched springs
• Rear adjustable spring perches with matched springs
• Upgraded bump stops and protective sleeves
• All required hardware as supplied by BMW

Vehicle fitment

• BMW G80 M3 2021+
• BMW G80 M3 Competition 2021+
• BMW G80 M3 Competition xDrive 2021+
• BMW G82 M4 2021+
• BMW G82 M4 Competition 2021+
• BMW G82 M4 Competition xDrive 2021+

Compatible with Electronic Damper Control.

Real-world feedback

We have installed this genuine BMW M Performance HAS package on customer G80 and G82 builds, and the response has been outstanding. Owners report a cleaner, OEM-plus stance, improved body control at speed and a refined ride quality that suits UK roads. If you want factory-level integration with ride-height flexibility, this is the benchmark solution.

Professional installation and alignment

We recommend professional fitting and a four-wheel alignment to optimise handling and tyre wear. Book installation with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Compatibility check before dispatch

For peace of mind we can verify fitment prior to shipping. Provide your UK registration or the last 7 of your VIN at checkout and we will confirm suitability for your G80 or G82.

Warranty

Two years manufacturer warranty for UK customers and one year for international customers when a VIN is provided at checkout on compatible vehicles.

Part number

31305A2D979

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