$595.00 USD
$595.00 USD












The MMX Performance BMW F97 X3M / F98 X4M Lowering Spring Kit is engineered to improve stance, handling response, and overall chassis balance while maintaining the ride quality expected from BMW’s X-Series M platform. Designed specifically for the F97 X3M and F98 X4M, this spring package delivers an approximate 30mm drop in ride height, lowering the center of gravity for sharper turn-in, reduced body roll, and a more planted driving feel.
By reducing the factory wheel gap and removing the inherent rake, the MMX lowering springs give the X3M and X4M a cleaner, more aggressive OEM+ appearance. The vehicle sits more level front to rear, creating a balanced stance that better matches the performance potential of the S58-powered platform.
MMX developed these springs to work with factory static and dynamic damper systems, preserving comfort during daily use while adding the control and confidence needed for spirited driving. Finished in a durable powder coat, the springs offer a durable, corrosion-resistant coating suitable for long-term use in real-world driving conditions.
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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.