KW Coilover suspension V4 (incl. deactivation for electronic dampers) - BMW 2/3/4 Series G8X M2/M3/M4

KW V4 Coilovers with Electronic Damper Deactivation – BMW G87 M2, G80 M3 & G82/G83 M4

The KW V4 Coilovers for the BMW G87 M2, G80 M3 and G82/G83 M4 are an advanced 3-way adjustable suspension system developed for high-performance road cars where extensive chassis tuning and premium construction are priorities.

Featuring independently adjustable rebound, low-speed compression and high-speed compression damping, the KW V4 provides considerably greater setup flexibility than the V3. This version also includes the required electronic damper deactivation solution, allowing the factory Adaptive M Suspension dampers to be replaced while preventing damper-control related warning messages.

For highly developed M2, M3 and M4 builds running performance tyres, increased power or more aggressive chassis setups, the V4 provides a sophisticated suspension platform capable of being tailored around the vehicle, road conditions and driver preference.

Why choose KW V4 for your BMW M2, M3 or M4?

The current-generation BMW M cars combine substantial power, wide tyres and considerable chassis capability, placing significant demands on the suspension when driven hard.

The KW V4 goes beyond conventional 1-way and 2-way coilover systems by separating compression damping into low-speed and high-speed adjustment while retaining independent rebound control.

This provides experienced drivers and suspension specialists with much greater freedom to control body movement, weight transfer and the way the suspension reacts to bumps and sharper road inputs.

For owners who want extensive manual setup capability while retaining a suspension system designed for high-performance road use, the V4 sits among the most advanced options in KW's road-focused range.

Key Features

• KW V4 coilover suspension
• Applications available for BMW G87 M2
• Applications available for BMW G80 M3 and M3 Competition
• Applications available for BMW G82/G83 M4 and M4 Competition
• Electronic damper deactivation included on applicable kits
• Adjustable ride height
• 3-way adjustable damping
• 16-click rebound damping adjustment
• 6-click low-speed compression adjustment
• 14-click high-speed compression adjustment
• Independent damping adjustment
• KW INOX-LINE stainless-steel or application-specific lightweight construction
• Vehicle-specific spring and damper configuration
• Advanced road and fast-road suspension technology
• Suitable for occasional circuit use
• Motorsport-derived damper technology

KW specifies 16 rebound clicks, 6 low-speed compression clicks and 14 high-speed compression clicks for the Variant 4 system.

3-Way Adjustable Damping

The defining feature of the KW V4 is its 3-way damping adjustment.

Rather than providing a single combined damper control or conventional compression and rebound adjustment, the V4 separates compression damping into low-speed and high-speed ranges.

The driver can therefore independently adjust:

• Rebound damping
• Low-speed compression damping
• High-speed compression damping

This gives the V4 a much larger tuning window and allows changes to be made to specific areas of the vehicle's behaviour rather than making broad changes to overall damper stiffness.

16-Click Rebound Adjustment

Rebound damping controls how quickly the suspension extends after being compressed.

The KW V4 provides 16 precise rebound adjustment positions.

Increasing rebound can provide greater body control and help the chassis feel more settled during braking, cornering and directional changes.

Reducing rebound can allow the suspension to extend more freely and provide greater compliance where road surfaces are uneven.

The ideal setting depends on factors including tyre choice, spring setup, road conditions and driver preference.

6-Click Low-Speed Compression Adjustment

The KW V4 provides six positions of low-speed compression adjustment.

Low-speed compression relates to slower damper movements generated primarily by chassis movements rather than vehicle speed itself.

These include:

• Body roll during cornering
• Brake dive
• Pitch under acceleration
• Weight transfer
• Chassis response during directional changes

Adjusting this circuit allows the driver to alter how controlled the body feels without necessarily making the suspension excessively restrictive over sharper bumps.

14-Click High-Speed Compression Adjustment

High-speed compression relates to faster damper movements created by sharper suspension inputs.

Examples include:

• Potholes and road imperfections
• Expansion joints
• Sharp surface changes
• Kerbs during circuit use
• Sudden wheel impacts

The KW V4 provides 14 positions of high-speed compression adjustment.

This allows the suspension's response to sharper impacts to be tuned independently from the slower chassis movements controlled by the low-speed compression circuit.

This separation is one of the biggest advantages of a properly developed 3-way damper.

Electronic Damper Deactivation Included

The G87 M2, G80 M3 and G82/G83 M4 are available with electronically controlled Adaptive M Suspension.

When the factory electronically adjustable dampers are replaced with manually adjustable KW V4 dampers, the original electronic damping system can no longer control suspension stiffness.

The included KW electronic damper deactivation solution disables the original damper-control function and prevents the vehicle from generating errors because the factory electronic dampers are no longer connected.

KW states that its cancellation system deactivates the original damper control while other vehicle control functions remain operational.

Once converted, damping adjustment is carried out manually through the V4 adjusters rather than through the vehicle's factory suspension modes.

Adjustable Ride Height

The KW V4 provides adjustable front and rear ride height within the approved range for the specific application.

Current G80 M3 and G82 M4 application information lists approximately:

• Front lowering: 20–35mm
• Rear lowering: 15–30mm

The G87/G8X application family uses threaded adjustment at the front and an adjustable rear spring arrangement.

Ride height should be selected around suspension travel, tyre clearance and geometry rather than appearance alone.

Excessive lowering can reduce available bump travel and negatively affect suspension geometry, so the lowest possible setting is not necessarily the best-performing setup.

KW INOX-LINE Construction

The KW V4 uses high-quality stainless-steel or application-specific lightweight damper construction depending on the exact vehicle version.

KW's stainless-steel INOX-LINE technology provides excellent corrosion resistance and helps keep threaded adjustment areas serviceable when correctly maintained.

This is particularly valuable for performance cars that continue to be used throughout the year in UK road conditions.

BMW G87 M2 Suspension Upgrade

The G87 M2 combines the S58 engine with a compact rear-wheel-drive chassis and substantial performance potential.

The KW V4 is particularly well suited to developed G87 builds where tyre grip, braking capability or engine output have been increased beyond standard.

Its 3-way damping adjustment allows the suspension to be configured around changes elsewhere in the chassis rather than relying on a single general-purpose setup.

BMW G80 M3 Suspension Upgrade

The G80 M3 is an extremely capable platform in both standard and Competition form.

Whether used as a high-performance road car or a more focused weekend build, the V4 provides additional control over chassis movement and suspension response.

For cars running more aggressive geometry, lightweight wheels or higher-grip tyres, the additional damping adjustment can provide valuable setup flexibility.

BMW G82/G83 M4 Suspension Upgrade

The G82 M4 Coupe and G83 M4 Convertible share much of their chassis architecture with the G80 M3 but have different body configurations and vehicle characteristics.

A sophisticated coilover system such as the V4 allows the suspension to be tailored around the exact vehicle, tyre setup and intended use.

Exact application should always be confirmed before ordering, particularly between rear-wheel-drive and xDrive models.

RWD & xDrive Applications

Different KW V4 part numbers are used depending on drivetrain and vehicle specification.

Current fitment listings show V4 applications across rear-wheel-drive and xDrive G80/G82 models, while the G87 M2 uses its own appropriate application.

Because axle loads and suspension configurations can differ between variants, the correct kit should always be selected using the exact vehicle details.

KW V3 vs KW V4

The KW V3 provides independently adjustable compression and rebound damping and is already an extremely capable suspension system for road and fast-road use.

The V4 adds another level of control by separating compression damping into low-speed and high-speed adjustment.

This allows the driver to alter body control independently from the suspension's behaviour over sharper bumps and road inputs.

For most road-focused builds, the V3 provides an excellent balance of performance and simplicity.

For experienced drivers wanting much greater control over suspension behaviour, the V4 provides a substantially larger tuning window.

KW V4 vs KW Clubsport

Although the V4 uses advanced motorsport-derived damping technology, it remains part of KW's high-performance road-focused Variant range.

KW Clubsport systems are developed with a stronger emphasis on circuit use, high-grip tyres and more aggressive suspension geometry.

For a car that sees significant road mileage but where advanced setup control is desired, the V4 is an excellent option.

For regular circuit use and more track-focused geometry requirements, a Clubsport system may be more appropriate.

Road, Fast-Road & Occasional Track Use

The KW V4 is particularly well suited to:

• BMW G87 M2 performance builds
• BMW G80 M3 and M3 Competition
• BMW G82/G83 M4 and M4 Competition
• Highly developed fast-road cars
• Vehicles running performance or semi-slick tyres
• Higher-powered builds
• Owners wanting advanced suspension adjustment
• Cars seeing occasional track-day use
• Drivers working with suspension specialists

Because of the number of available adjustments, correct setup becomes increasingly important.

Professional Installation, Alignment & Setup

Professional installation is strongly recommended for the KW V4.

The electronic damper deactivation components must be installed correctly alongside the mechanical suspension components.

Once fitted, a comprehensive four-wheel alignment should be carried out so that toe, camber and other geometry settings can be configured around the selected ride height.

For more performance-focused vehicles, corner weighting may also be worthwhile.

Damping adjustments should be changed methodically and ideally recorded so that the effect of each change can be properly evaluated.

Maintenance

Although KW's corrosion-resistant construction provides excellent durability, regular maintenance is still recommended.

Threaded height-adjustment areas, spring platforms and damping controls should be kept clean, particularly on vehicles exposed to winter road salt, moisture and track debris.

Electronic cancellation modules and associated wiring should also be periodically inspected to ensure connections remain secure.

BMW G87 M2, G80 M3 & G82/G83 M4 Compatibility

KW V4 applications are available for applicable models within the current BMW M2, M3 and M4 range, including:

• BMW G87 M2
• BMW G80 M3
• BMW G80 M3 Competition
• BMW G80 M3 Competition xDrive where applicable
• BMW G82 M4
• BMW G82 M4 Competition
• BMW G82 M4 Competition xDrive where applicable
• BMW G83 M4 Convertible applications where specified

Exact part number, drivetrain compatibility, axle loads and kit configuration vary between models.

Please confirm your exact vehicle specification before ordering.

If you're unsure which KW V4 application your M2, M3 or M4 requires, contact us and we'll help identify the correct kit.

What's Included?

The KW V4 is supplied as a complete vehicle-specific suspension system for the applicable BMW model, including:

• KW V4 dampers
• Vehicle-specific springs
• Height-adjustment components
• 16-click rebound damping adjustment
• 6-click low-speed compression adjustment
• 14-click high-speed compression adjustment
• Electronic damper deactivation components
• Relevant vehicle-specific installation components

Exact contents, damper construction and top-mount configuration can vary according to application.

Explore More BMW M Parts

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BMW G80 M3 Parts – Explore suspension, handling and performance upgrades for the BMW G80 M3 and M3 Competition.

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