
ST X Coilovers for BMW 3 Series F30 F31 F34 GT – 2WD and 4WD xDrive
Transform the stance, handling and ride of your BMW 3 Series with the ST X Coilover Kit engineered by KW Automotive. This height adjustable suspension kit is a proven upgrade for F30 Saloon, F31 Touring and F34 GT models, whether rear wheel drive or xDrive 4WD. If you are searching for BMW F30 coilovers, F31 coilovers, F34 GT coilovers, BMW 3 Series coilover kit, adjustable coilovers for BMW, this is the street-focused performance suspension that delivers real-world results.
Lowering range
Front: 30–55 mm
Rear: 15–40 mm
Need to get low while improving control and confidence? ST X Coilovers feature a continuous thread for precise height adjustment, letting you dial in the perfect drop, stance and wheel fitment without compromising daily drivability. ST’s collaboration with KW Germany brings high-quality components and superb damping control for a sharper turn-in, reduced body roll and a composed, sporty ride on British roads.
Why choose ST X for your BMW F3x
- Designed in conjunction with KW Germany for outstanding build quality and driving dynamics
- Powerful twin-tube dampers with a chrome-plated piston rod for longevity
- Galvanised struts with an additional coating for optimised corrosion protection
- Polyamide height-adjuster ring for easy, precise ride-height tuning
- Monoblock guide and ST seal package to keep out dirt and grit in all weather
- Significant reduction in body roll and improved agility without harshness
What’s included
- Front and rear height-adjustable coilover struts within the tested range
- Adjustable spring perches and race spring system
- Matched bump stops with dust protection
- Complete solution ready to install
Real-world results from Nforcd
We have supplied and fitted ST X Coilovers to many BMW F3x cars and customer feedback has been consistently positive. Owners love the improved steering response, flatter cornering and clean, even ride quality on UK roads, all while achieving the precise lowering and stance they want.
Fitment notes
- Not for vehicles with electronic damper control
- Options vary by drivetrain (2WD or 4WD), model year (12-up/13-up) and axle weight category
- Please check your VIN plate for maximum axle loads – typically the third and fourth numbers are the front and rear axle ratings
- If you are unsure on compatibility, contact us and we will confirm the correct kit for your chassis and axle weights
Professional fitting available
For expert installation and alignment, book fitting with Nforcd in Warwickshire. Request a quote at Sales@nforcd.com.
Common search terms
BMW F30 coilovers, BMW F31 Touring coilovers, BMW F34 GT coilovers, BMW 3 Series coilover kit, ST X coilovers BMW, ST suspension BMW F30, height adjustable coilovers, BMW xDrive 4WD coilovers, BMW RWD coilovers, BMW 3 Series lowering kit, F30 suspension upgrade, F31 suspension upgrade, F34 suspension upgrade, KW engineered coilovers, street coilovers UK, performance suspension BMW 3 Series.