KW height-adjustable springs kit (Lowering springs) - BMW 3 Series E92 M3

KW Height Adjustable Spring Kit – BMW E92 M3

The KW Height Adjustable Spring Kit for the BMW E92 M3 is designed for owners who want adjustable lowering while retaining the original BMW dampers and factory suspension characteristics.

Unlike conventional lowering springs, the KW HAS system allows the ride height to be fine-tuned using threaded adjustment components at the front and rear. This makes it possible to achieve a more purposeful stance without committing to the fixed drop of a traditional lowering spring.

For E92 M3 models equipped with Electronic Damper Control, the original EDC dampers remain in place and the factory electronic damping functionality is retained.

Why choose the KW HAS Kit for your BMW E92 M3?

The E92 M3 already uses a highly capable factory suspension system, particularly on cars equipped with EDC.

For owners who are happy with the characteristics of the original dampers but want a lower ride height and greater control over stance, replacing the complete suspension with coilovers may not be necessary.

The KW Height Adjustable Spring Kit provides a useful middle ground.

It replaces the original springs and adds height-adjustment hardware while continuing to use the factory dampers, allowing the car to retain much of its original suspension functionality while benefiting from adjustable lowering.

Key Features

• KW Height Adjustable Spring Kit
• BMW E92 M3 Coupe application
• KW part number 25320057
• Retains the original BMW dampers
• Retains factory EDC functionality where fitted
• Continuously adjustable front and rear ride height
• Approx. 15–30mm front lowering
• Approx. 5–30mm rear lowering
• Vehicle-specific spring setup
• Threaded height-adjustment components
• Lower centre of gravity
• Improved stance and reduced arch gap
• Alternative to conventional lowering springs
• Ideal for road and fast-road E92 M3 builds

KW lists part number 25320057 specifically for the E90 M3 Saloon and E92 M3 Coupe.

Retains Factory EDC

One of the main advantages of the KW HAS kit on an E92 M3 is its compatibility with the original suspension dampers.

If your M3 is equipped with BMW Electronic Damper Control, the factory electronically adjustable dampers remain fitted.

This means the original EDC functionality can continue to operate after installation.

There is no need for an electronic damper cancellation kit because the factory dampers are not being removed.

For an E92 M3 used regularly on the road, this allows you to retain the flexibility of the original BMW suspension system while achieving a lower and more purposeful stance.

Adjustable Ride Height

Traditional lowering springs provide a predetermined reduction in ride height.

The KW HAS system adds threaded adjustment, allowing the height to be altered within the approved range.

KW currently lists approximately:

• Front lowering: 15–30mm
• Rear lowering: 5–30mm

for the E92 M3 application.

This gives owners greater flexibility when setting the car up around:

• Wheel specification
• Tyre size
• Desired arch gap
• Road clearance
• Overall stance
• Suspension geometry

The ability to fine-tune the front and rear independently is particularly useful when trying to achieve a balanced stance rather than relying on a predetermined spring drop.

Retains the Original BMW Dampers

The KW HAS kit is not a complete coilover conversion.

The factory shock absorbers remain fitted and continue to provide the damping characteristics of the original suspension.

The original springs are replaced with KW's vehicle-specific spring setup, while threaded adjustment components allow the ride height to be altered.

This makes the HAS system particularly suitable for owners who want adjustable lowering without fundamentally changing the character of the car.

BMW E92 M3 Suspension Upgrade

The E92 M3 combines its naturally aspirated S65 V8 with a capable rear-wheel-drive chassis that remains highly regarded among performance enthusiasts.

Lowering the centre of gravity and reducing arch gap can give the car a more purposeful appearance while also altering the chassis response.

The KW HAS kit can work well alongside upgrades such as:

• Performance tyres
• Lightweight wheels
• Uprated suspension bushes
• Adjustable suspension arms
• Chassis bracing
• Performance braking systems
• Upgraded anti-roll bars
• Performance wheel alignment

For road-driven E92 M3 builds, retaining the original dampers can also help preserve much of the car's factory refinement.

KW HAS vs Conventional Lowering Springs

The biggest difference between the KW HAS kit and conventional lowering springs is ride-height adjustment.

Traditional lowering springs provide a fixed drop.

Once installed, the ride height is determined by the spring design and cannot normally be altered.

The KW HAS system uses adjustable spring platforms, allowing the vehicle to be raised or lowered within the permitted range.

This gives you much more flexibility when setting the car up around wheels, tyres and personal preference.

KW HAS vs KW V3 Coilovers

The KW HAS kit and KW V3 serve different types of customer.

The HAS kit:

• Retains the original BMW dampers
• Retains EDC where fitted
• Provides adjustable ride height
• Does not add aftermarket damping adjustment

The KW V3:

• Replaces the original dampers
• Provides adjustable ride height
• Adds independent compression and rebound adjustment
• Provides significantly greater suspension tuning capability

For owners primarily looking to lower their E92 M3 while retaining the original suspension behaviour, the HAS kit is the simpler option.

For drivers wanting substantially more control over the suspension itself, the V3 is the more advanced solution.

KW HAS vs Full Coilovers

A full coilover kit replaces considerably more of the original suspension system.

This can provide greater control over spring rates, damping and overall chassis behaviour, but it also changes more of the factory setup.

The KW HAS kit takes a less invasive approach.

By retaining the original dampers, it allows owners to lower the car while keeping much of the character and functionality of the original BMW suspension.

This makes it particularly attractive for road-focused E92 M3 builds.

EDC & Non-EDC Models

The KW HAS system can be particularly useful because it works with the original dampers rather than replacing them.

On EDC-equipped cars, the electronic damping system is retained.

On non-EDC cars, the original conventional dampers remain in use.

This means the kit can provide adjustable lowering without requiring the owner to remove the existing damper system simply to achieve the desired ride height.

Exact vehicle compatibility should still be confirmed before ordering.

Road & Fast-Road Use

The KW Height Adjustable Spring Kit is particularly well suited to:

• Daily-driven BMW E92 M3 models
• EDC-equipped M3s
• Fast-road builds
• OEM+ suspension setups
• Owners wanting improved stance
• Cars running aftermarket wheels
• Drivers who want to retain the factory dampers
• Owners who do not require aftermarket damping adjustment

For more extensive track use or detailed chassis tuning, a complete KW coilover or Clubsport system may be more appropriate.

Wheel & Tyre Fitment

Adjustable ride height can be especially useful when running aftermarket wheel and tyre combinations.

However, lowering the E92 M3 reduces clearance between the wheel, tyre, suspension and surrounding bodywork.

Correct fitment will depend on factors including:

• Wheel width
• Wheel offset
• Tyre width
• Tyre profile
• Alignment settings
• Selected ride height

Wheel and tyre clearance should always be checked during installation.

Professional Installation & Alignment

Professional installation is recommended for the KW HAS kit.

The front spring installation uses height-adjustment components fitted in conjunction with the original damper assembly, while the rear uses its own adjustable spring arrangement. KW installation documentation specifies dedicated front and rear adjustment measurements for the application.

Once the final ride height has been selected, the vehicle should receive a full four-wheel alignment.

Lowering the car alters suspension geometry and can affect toe, camber and tyre wear.

For more performance-focused E92 M3 builds, a specialist fast-road alignment may further improve steering response and chassis balance.

Maintenance

The threaded height-adjustment components should be kept clean and regularly inspected.

This is particularly important on cars used throughout winter, where moisture, dirt and road salt can accumulate around the adjustment hardware.

Keeping the threads clean will help ensure the ride height remains adjustable over the long term.

The original dampers should also continue to be inspected and maintained as part of normal vehicle servicing.

BMW E92 M3 Compatibility

This KW Height Adjustable Spring Kit is intended for the BMW E92 M3 Coupe.

KW part number:

25320057

Current application information lists:

• BMW E92 M3 Coupe
• BMW E90 M3 Saloon
• Factory dampers retained
• Factory EDC retained where fitted
• Front lowering: approximately 15–30mm
• Rear lowering: approximately 5–30mm.

The E93 M3 Convertible uses a different KW HAS part number and should not be assumed to use this kit.

Please confirm your exact vehicle specification before ordering.

If you're unsure whether this KW HAS kit is correct for your E92 M3, contact us and we'll help confirm the correct application.

What's Included?

The KW Height Adjustable Spring Kit is supplied with the vehicle-specific components required to convert the original suspension to an adjustable-height spring setup, including:

• KW performance springs
• Front height-adjustment components
• Rear height-adjustment components
• Vehicle-specific spring hardware
• Bump stops and dust protection components where applicable
• Relevant installation components

The original BMW dampers remain in use.

Explore More BMW E92 M3 Parts

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