Swift Springs Spec R 2014+ BMW M4 3 inch inner diameter extending the life of the

extending the life of the high-wear components within your block and letting you focus not on keeping things cool

In Production = # of wheels coming in the next shipment

Springs - Barrel Type - 12" Length - ID 2

R- 23mm (1 inches)

* Wash off any sand

Swift Springs Spec R 2014+ BMW M4 3 inch inner diameter extending the life of theSpring Rate F 5 kg mm (280lbs in) R 13 kg mm (726lbs in) Lowers F 28mm (1. 1 inches) R 23mm (. 9 inches) Built for track duty, Swift Spec R springs are designed at the upper limits of the OEM shock valving. Track tested and tuned for optimum performance yet comfortable enough for a daily driver. Keeps the quality ride you get from the showroom, and adds improved handling and lower ride height for driving enthusiasts and style minded drivers who demand