$595.00 USD
$595.00 USD












The MMX Performance F40 M135i xDrive Lowering Spring Set transforms the stance and dynamic feel of BMW's M-Lite hot hatch without compromising the everyday drivability that makes the M135i xDrive such a versatile platform. Engineered specifically for the F40 chassis and its xDrive weight distribution, these springs bring the car closer to the ground and tighten up its responses.
The 25mm front and 20mm rear drop closes up the wheel arches, lowers the centre of gravity, and noticeably reduces body roll through corners. Turn-in becomes crisper, the front end loads more progressively, and the entire chassis feels lighter and more direct, exactly what the M135i platform deserves.
Spring rates are tuned to work with the OE damper, including both static and dynamic damper-equipped cars, so there's no need to upgrade your shocks at the same time. Daily driving manners stay intact: the ride remains compliant over road imperfections, and the springs preserve the M135i's surprisingly civilised character even at the lowered ride height.
The perfect balance of improved dynamics, sharper aesthetics, and OE-quality ride compliance, finished in MMX metallic grey to look every bit as engineered as the rest of the car.
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$595.00 USD
$595.00 USD
This product can expose you to chemicals such as lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
For a complete list of chemicals known to cause harm, visit https://www.p65warnings.ca.gov/chemicals.
Under the federal Clean Air Act (42 U.S.C. §7522(a)(3)), it is illegal to manufacture, sell, install, or use any part that defeats or alters a motor vehicle’s emission control system for use on public roads. Unless a product has received an Executive Order (EO) from the California Air Resources Board (CARB), it is not legal for use or installation on any pollution-controlled vehicle driven on public highways.
Some states have CARB-equivalent or independent emissions laws. Customers are responsible for verifying local regulations before purchasing or installing emissions-related products.
All performance, racing, or competition parts sold by this company are intended solely for off-road, closed-course, or competition use on vehicles that are never registered or used on public highways.
Kies Motorsports, LLC sells and markets these products for lawful use only. We do not condone or authorize the use of emission-control defeat devices or any modification that violates the Clean Air Act or state regulations.