KW Variant 3 (V3) Coilovers for BMW F31 F33 F34 F36 - 3 & 4 Series (Touring, Convertible, GT, Gran Coupe) Height, Rebound & Compression Adjustable inox-line Suspension Kit

Adjustable Coilover Suspension Kit for BMW F31, F33, F34, F36 3 Series and 4 Series

Give your BMW sharper steering, tighter body control and a perfect stance with this inox-line adjustable coilover system. Designed for the F31 Touring, F33 Convertible, F34 Gran Turismo and F36 Gran Coupe, this height and damping adjustable kit lets you dial in ride height, rebound and compression for fast road and occasional track use while keeping day-to-day comfort on British roads.

We have installed this kit on our own cars and many customer builds and it consistently delivers superb road holding, confident turn-in and excellent ride quality on UK tarmac. If you are looking for a premium suspension upgrade for your BMW 3 Series or 4 Series, this is the go-to choice for drivers who want both performance and refinement.

What you get

• Independent damping control with precise click adjustment for rebound and compression
• Ride height adjustability for a tailored drop and improved stance
• Stainless steel strut bodies with corrosion resistant inox-line construction
• Twin-tube damper technology for composed handling and everyday comfort
• High quality components and comprehensive documentation for setup and use

Why enthusiasts choose this kit

• Fine-tune chassis balance to suit wheels, tyres and driving style
• Reduce squat, dive and body roll without ruining ride comfort
• Improved high speed stability and confidence on B-roads
• Proven on countless fast-road builds and track-day setups

Fitment guide

Compatible with the following BMW models and engines, subject to correct front axle load selection:

BMW 3 Series F31 Touring: 316d, 318d, 320d, 320i, 325d, 328i, 330d, 335i

BMW 4 Series F33 Convertible: 420d, 420i, 425d, 428i, 430d

BMW 4 Series F34 Gran Turismo: 318d, 320d, 320i, 325d, 328i, 330d, 335i

BMW 4 Series F36 Gran Coupe: 418d, 418i, 420d, 420i, 425d, 428i, 430d, 430i, 435i, 440i

Front axle load options and part numbers

• Up to 913 kg front axle load: Part Number 3522000H
• 914 kg to 1020 kg front axle load: Part Number 3522000J

Select by checking the axle weight on your vehicle data plate. Unsure which to choose? Email us and we will guide you.

Real world performance

This coilover package offers the adjustability enthusiasts want for fast road driving, weekend blasts and occasional circuit work. The separate rebound and compression controls allow you to enhance turn-in, improve mid-corner grip and refine ride quality to suit UK road surfaces. Our customers regularly praise the balance between control and comfort, especially on mixed B-road routes.

Setup and installation

Professional installation and four-wheel alignment are strongly recommended. For fitting, choose MJ Modifications in Warwickshire for expert service and setup. Request a quote at info@mjmodifications.co.uk.

Quality and warranty

Built with inox-line stainless components for long-term durability and corrosion resistance. Warranty is 2 years as standard, extendable to 5 years when installed by an approved specialist, subject to manufacturer terms.

Search terms frequently used

BMW F31 suspension upgrade UK, BMW F33 adjustable shocks, BMW F34 GT lowering kit, BMW F36 Gran Coupe suspension, height adjustable shock absorbers, rebound adjustable dampers, compression adjustable dampers, stainless steel coilover system, twin-tube performance dampers, BMW 3 Series Touring lowering suspension, BMW 4 Series Convertible suspension kit, BMW 420d 430d 435i 440i suspension, performance coilover kit UK, fast road suspension setup, track day suspension BMW F3x.