$595.00 USD
$595.00 USD
















The MMX Performance G42 2-Series Lowering Spring Set is a precision-engineered suspension upgrade developed to enhance the driving dynamics, stance, and overall balance of the BMW G42 platform. Designed specifically for the G42 2-Series and M240i xDrive, this spring kit delivers a carefully calculated reduction in ride height while maintaining full compatibility with factory damping systems, including both static and Adaptive M suspension.
Extensive development and real-world testing have resulted in a spring rate profile that improves chassis response without compromising daily drivability. By lowering the vehicle’s center of gravity, the MMX springs significantly reduce body roll, improve weight transfer, and sharpen turn-in response. The result is a more connected and controlled driving experience, particularly under aggressive cornering conditions.
The progressive spring design ensures that ride quality remains composed during normal driving, with improved compliance at lower speeds and increased support under load. Unlike overly aggressive lowering solutions, the MMX spring rates are specifically matched to factory damper characteristics, preventing excessive rebound, harshness, or loss of suspension travel.
Ride height is reduced by approximately 30mm at the front and 25mm at the rear for xDrive models, while rear-wheel drive variants achieve a 30mm front and 20mm rear drop. This optimized stance eliminates excessive wheel arch gap while maintaining proper suspension geometry and everyday usability. The result is a more purposeful, OEM+ appearance that aligns with the performance characteristics of the G42 chassis.
Each spring is finished in a durable powder coat, providing long-term resistance to corrosion and environmental wear. As one of MMX’s most popular suspension upgrades, this kit represents a balanced approach to improving both form and function without compromising the integrity of the factory setup.
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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.