BMW M3 Coilover Suspension Kit - KW - Height Adjustable Spring (H.A.S.) - 2015. This KW H.A.S. kit gives your 2015 M3 the ability to fine-tune ride height after installation while maintaining factory suspension functionality.

Designed for drivers who want precise ride-height control without replacing OEM dampers, the KW H.A.S. system uses vehicle-specific spring rates and high-strength chrome-silicon steel springs tuned to work with your factory adaptive or electronic suspension. The kit allows continuous, millimeter-precise adjustment within a tested range, includes vehicle-specific bump stops and dust protection to reduce wear, and improves steering response and handling balance without compromising driver assistance or comfort systems. Developed and manufactured in Germany, KW testing includes track development to ensure reliable performance and fitment.

Features

• Height-adjustable per corner for millimeter-precise lowering
• Application: 2015 BMW M3 (F80) sedan
• High-strength chrome-silicon steel springs, vehicle-specific rates
• Includes bump stops and dust protection elements where applicable
• Works with factory adaptive/electronic dampers; retains original systems
• Developed and manufactured in Germany; limited lifetime warranty

If you have questions or want help choosing the right setup, call us directly — we’re happy to advise. Installation and customization services are available on premises at both our Austin, Texas and Los Angeles, California locations. Call: 512-982-9393 (TX) or 562-981-6800 (CA). If you are considering purchasing multiple items, please contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov