Choosing between a BMW M3 and a BMW M5 is a tough decision—not just for die-hard BMW M enthusiasts. As a suspension manufacturer, we prefer to stay neutral.

In any case, we have developed our KW coilover kits for all BMW M3 and BMW M4 models, as well as all BMW M5 models across all series (LINK).

We have recently added a KW coilover suspension kit for the current BMW M5, the G90 series, to our product range, complete with parts certification. This KW V4 coilover can be adjusted separately in the high-speed and low-speed compression stages, as well as the low-speed rebound stage. Like its predecessor for the BMW M5 F90 series, we manufacture this coilover suspension to order from high-strength aluminum alloy

As of April 2025, the KW V4 threaded suspension is only available for the BMW M5 (G90) sedan. The V4 for the BMW M5 Touring (G91) is still in development and is expected to be released in summer 2025. However, you will soon be able to pre-order the suspension for the M5 Touring. Just reach out to the team at KW Sales.

For the new BMW M5 Sedan, the parts certificate covers a continuous lowering of 15 to 30 millimeters at the front axle and 10 to 30 millimeters at the rear axle. Like the F90, the G90 also features all-wheel drive.

Why threeway-adjustable dampers?

Many people ask us at trade fairs, events, and on our social media channels why we even build coilover kits with adjustable dampers. The answer? Because we can. Joking aside, a suspension with adjustable dampers offers much more driving pleasure than one without, even if you never plan to change your suspension setup. It sounds strange, but it’s true.

Suspensions that can be adjusted in various parameters, such as high-speed compression, low-speed compression, and low-speed rebound—like the KW V4 coilover suspension—ensure much better handling thanks to their sophisticated valve technology. This is one of the reasons why more and more car manufacturers are opting for suspension systems with threeway-adjustable dampers in selected special models.

Incidentally, the first series-production car we equipped with a chassis featuring threeway-adjustable dampers ex works was the BMW M4 GTS. As every M fan knows, the M4 GTS was not a race car, but a sports car that always delivers absolutely superb handling on both the race track and the road.

At that time, we were using completely different valve technology compared to our current V4 suspension developments. At KW, we are constantly refining our suspensions.

For example, with the new KW V4 coilover suspension kit for the BMW M5 (G90), we no longer need an external reservoir. This allows us to work without a space-consuming piggyback. As a result, the clicks for the high-speed and low-speed compression settings differ between the old KW V4 and the new KW V4.

The 727 hp BMW M5, available exclusively as a plug-in hybrid, feels significantly more agile with the KW V4 coilover suspension despite its weight of over 2.5 tons. The sedan craves fast corners even more and remains controllable and stable.

The body structure is perfectly supported during all dynamic driving maneuvers. The coilover suspension precisely dampens slight bumps on the highway—even at top speeds. Thanks to its multi-valve technology, the KW V4 coilover suspension in the BMW M5 also impresses with its residual driving comfort on secondary roads.

Offering a wide range of tuning options for a customized suspension setup for the BMW M5 (G90), the KW V4 features 13 clicks in the low-speed compression stage and 13 clicks in the high-speed compression stage. Adjust the rebound forces with 16 precise clicks for tighter handling or more comfort.

Simply put, the compression stage affects compression, and the rebound stage affects rebound. Higher compression stage forces or a stiffer compression stage on the front axle ensure more direct steering. Steering becomes more precise, and handling becomes more aggressive.

On the other hand, a softer compression stage makes the steering more responsive. Higher compression forces on the rear axle counteract oversteering effectively. Stability increases when changing direction. A softer setting allows the rear to steer more freely.

Increasing the rebound stage makes handling on the front axle more direct, although ride comfort may be slightly reduced. Low rebound stage forces increase ride comfort at slow speeds, while higher rebound stage forces enhance handling feedback.

Don’t be afraid to adjust the preset damping setup of the KW V4 coilover suspension. Here’s a simple tip: change a maximum of two clicks per parameter on each axle. Ensure the same setup is always selected for the left and right sides. KW V4, like every adjustable KW coilover suspension, comes with adjustment instructions.

Just a few clicks are all it takes to enhance the driving dynamics or comfort of the BMW M5 – depending on the individual suspension settings. Thanks to the sophisticated multi-valve technology, the differences are significantly greater than with a conventional electronically adjustable suspension. This is also one of the reasons why a test car impressed the editors of Sport Auto 8/2023 (click for link) and Auto Bild Supertest (click for link) at the time with its threeway-adjustable coilover suspension.

Installing the KW V4 coilover suspension kit includes a deactivation kit for the original electronical shocks. Except for the adaptive damper control, all assistance and driving dynamics systems of the BMW M5 remain active.

Those who want to continue using the adaptive suspension functions in their BMW M5 (G90) and desire continuous lowering will need to be patient a little longer. We are working intensively on a height-adjustable spring kit.