Upgrade the suspension performance of your 2015–2018 BMW M3 (F80) with Swift Spec-R Springs. Designed as performance lowering springs, they deliver sharper handling, reduced body roll, and a more aggressive stance—while maintaining comfort for street driving.
Part # 4X909R
Spring Rate – Front: 4.8 kgf/mm | Rear: 12.8 kgf/mm Drop – Front: -1.0 in | Rear: -0.4 in
Swift Spec-R Springs are precision-engineered for the BMW M3 F80 chassis, striking the ideal balance of track-inspired performance and everyday usability.
