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BMU MR41 Road & Track Coilover Suspension for the F87 M2, F82 M4, and F80 M3
Öhlins Road & Track suspension systems are engineered to provide the ideal balance of track capability and street comfort. We utilized 40+ years of experience in the motorsport and OE industries to produce a package incorporating patented technology with OE levels of quality and longevity. We then apply our tuning philosophy to each particular application to extract the most performance while maintaining ride quality.
One way Öhlins achieves this balance is our patented Dual Flow Valve. The DFV provides an additional oil bypass when bumps get severe. Engineers can tune the damper for increased support when turning and braking while maintaining composure over track curbing and rough pavement. This technology allows the use of linear spring rates (just like a motorsport application) for further chassis support without affecting daily comfort.
Another feature is the damping adjustability via a single “clicker” knob that proportionally increases compression and rebound damping to best suit the driver’s needs. Whether it’s a smooth track or a weekly commute, the dampers can be adjusted within their usable range to best suit track or street conditions. In other words, an engineering degree isn’t necessary each time an adjustment is necessary.
The BMW F82 M4 front shocks utilize monotube DFV struts with separate spring preload and height adjustment. For the rear, inverted, aluminum DFV shocks come with height adjustable spring perches. Separating spring preload from height adjustment allows precise height adjustment without affecting suspension travel. Considering the F82 M4 is already tuned as a high performance street car with track capability, Öhlins took the approach most drivers will utilize track-oriented tires and tailored the suspension to match. The tuning approach minimizes understeer without the necessity of aggressive alignment settings or wide front tire fitments, while still maintaining safety and comfort on the street.
We are typically very quick and have a 24-48 hour turnaround time (this applies to products we have readily available at the warehouse and not a product that requires special order). Transit time depends on your order and which warehouse we are shipping from, but typical transit times are between 5-7 business days from one side of the US to the other. Larger items like bumpers and body kit conversions can take up to 10 business days to get you from time of ship.
Majority of the items we offer do ship free to the lower contiguous 48 states. States that require plane or boat to reach (such as Hawaii, Alaska, Puerto Rico, etc) do NOT qualify for free shipping. Larger items such as bumpers, hoods, fenders, also do NOT qualify for free shipping. Please contact us to inquire about international shipping costs. During checkout, you will know which items ship free and which have shipping costs associated with them. In general, larger/heavier items will have additional shipping costs (body kits, wheels/rims, etc)
Even though everything can be shipped internationally, sometimes the cost is simply just too high and doesn't make sense to do so. We're here to make sure you have a great shopping experience, so if you have a product(s) you want to inquire about, please contact us at info@kiesmotorsports.com
Yes, we do price match reputable competitors in the marketplace. If you find a product cheaper elsewhere, please email us the (1) link of the product from our website and (2) the link to the competitor site. We will make an assessment on our end if we are able to price match or not and respond to you via email.
Typically you have 14 days to return a product you purchase when you change your mind. Damaged and improperly installed products are NOT eligible for returns. Shipping fees may be assessed and not refunded based on criteria as well as restocking fees. Please see our FAQ page for more details.
Unfortunate Kies Motorsports no longer does customer installs. Our HQ is solely reserved for filming, office space, and shipping/receiving.