Track Proven MCS Suspension for the BMW G80 M3 and G82 M4 xDrive

The BMW G80 M3 and G82 M4 xDrive are some of the most capable modern M cars ever built, with huge power from the S58, a rigid chassis and all wheel drive traction. What they still leave on the table is mechanical grip, composure over bumps and confidence when you start pushing beyond the limits of the stock suspension. That is where Motion Control Suspension comes in. Built in the USA and proven in championship winning race programs, MCS dampers deliver the control, consistency and feedback the G8X chassis really deserves.

With years of testing on our own and customer cars, we have seen consistent improvements in pace, tire wear and driver confidence compared to the OEM suspension. We have set multiple lap records in BMW and Porsche platforms using MCS systems and in our experience this is the solution we trust when a G80 or G82 needs to work on both street and track.

Why Choose MCS for Your G8X M3 or M4

• Motorsport bred: Developed by a team with decades of professional racing and OEM development experience, including major endurance wins.
• Real performance gains: Increased mechanical grip, better platform control and more confidence on turn in and corner exit translate directly into faster, more consistent laps.
• Street friendly, track ready: Thoughtful valving and high quality internals mean improved ride quality on the street with far more control on track compared to the stock suspension.
• Fully serviceable and upgradeable: Every MCS damper is rebuildable and can be refreshed, revalved or upgraded as your program evolves.
• Track developed: MCS dampers are born from real motorsport programs, with hardware and valving proven on modern GT and endurance racing platforms.
• Fast, knowledgeable support: You are working with a race shop that runs, tunes and wins on MCS dampers, not just a reseller.

Built Around the G8X Chassis

The G80 M3 and G82 M4 xDrive are heavy, very fast cars that rely on the suspension to manage weight transfer, curb strikes and power delivery out of corners. The factory adaptive dampers do a good job for everyday use but can feel vague and underdamped when you start driving harder or running more aggressive tires and alignment. MCS monotube construction, large shaft diameters and precise adjusters give you the support and control needed without making the car nervous or harsh.

With properly set up MCS suspension, turn in becomes cleaner, mid corner balance is easier to trust and traction off slower corners is significantly improved. Whether you are running canyons, HPDE weekends or time attack, this system gives you the range you need to dial the car in for tire choice, aero and driving style.

RWE Curated Assemblies

Most off the shelf coilover kits are built to a single compromise that does not really suit anyone perfectly. We approach it differently. Every MCS G8X kit we sell is specified, assembled and checked in house with your goals in mind.

• Street / Track Package
  Our go to option for a G80 or G82 that needs to do everything. Spring rates and settings are chosen to prioritize comfort and control on the street while remaining fully capable on track. This is the setup many customers daily drive and use for HPDE and track days.
• Custom Package
  For more focused builds, such as heavy aero cars, wider tires or dedicated track and time attack cars, we can spec a fully custom package. Choose the “Custom” option in the Assembly menu and we will consult with you on damper configuration, spring rates and overall setup to match your goals and experience level.

Our complete assemblies typically include MCS dampers, our spec main and helper springs and the required hardware for the BMW G80 M3 and G82 M4 xDrive. All components are assembled, torqued and paint marked in house so you receive a true ready to bolt on solution.

MCS Damper Configuration Options

The G8X kit is available in several MCS configurations so you can match adjustment range and complexity to how you use the car. All share the same build quality and core piston design, with the difference being how many adjustments you have and how wide the tuning window is.

• 1 Way Non-Remote
  A single adjustment that changes rebound and compression together. Simple to use, ideal for mixed street and track cars and drivers who want a noticeable improvement without having to chase separate settings at every event.
• 2 Way Non-Remote
  Independent rebound and compression adjustment on the damper body. This gives you more control over how the car responds on entry versus over bumps and curbs, without the packaging complexity of remote canisters.
• 2 Way Remote
  Adds remote canisters with separate compression adjustment. The extra oil volume and finer control improve heat management and consistency during long sessions while giving you a wider usable adjustment range.
• 3 Way Remote
  Separate rebound and independent high and low speed compression adjustments. This lets you tune support for braking and aero separately from compliance over bumps, ideal for serious track and time attack cars.
• 4 Way Remote
  Maximum adjustment range and resolution, with independent rebound and high and low speed compression control. Best suited for dedicated race and heavy aero cars where you want to fine tune the chassis for specific tracks, tires and conditions.

Street / Track and Custom spring and setup options are available across these MCS configurations. For a deeper dive into the differences between each option and recommendations for your use case, visit our MCS Assembly Option Information page.

Custom Tuning Available

No two builds or drivers are exactly the same. If you have a specific use case, such as heavy aero, a particular tire size, a dedicated time attack car or a street car that must stay within certain NVH limits, we can tailor the package to match. Spring rates, nitrogen pressure and custom valving are available by request. Choose the “Custom” option at checkout and include your contact information. We will reach out to review your current setup, goals and experience level before finalizing the spec.

Custom valving and special order configurations may add lead time depending on season and demand.

Coilover Rear vs Divorced Rear

The G8X chassis uses a divorced rear spring and damper layout from the factory. MCS allows you to keep a divorced rear configuration or convert to a full coilover rear depending on your goals, class rules and packaging preferences. We typically recommend the coilover rear for maximum adjustment range, corner weight accuracy and simplicity, but we can supply either layout. Choose your preferred configuration from the dropdown when ordering.

In Stock and Ready to Ship

We keep common G80 M3 and G82 M4 xDrive MCS systems and spring combinations in stock and can usually ship complete kits within one business day when all components are on the shelf. Order a complete kit and we will ship a fully assembled, ready to bolt on damper package, torqued to spec and paint marked so you can install with confidence.

If you are not sure which package is right for you, reach out for a quick consultation and we will help you choose the right system for your G8X and your driving.