Pay in 4 interest-free payments of $44.12 Learn more
Ships within 48 hours · Estimated delivery Sep 24 - Sep 29
Professional installation is required
200/500 lbs/in Progressive
65mm ID All Kits come with 4 thrust sheets & 4 metal washer sheets (1 kit for 2 springs)
Sold as a pair
Swift Progressive Helper Springs 65mm ID, 4 in length 5.3-11.6kg/mm Pair Bump Springs Professional installation is required65mm ID, 4 in length 5. 3 11. 6 kg mm Progressive Swift helper Springs are made from a proprietary material. Helper springs allow the spring to stay on mounted on the coilover perch when the shock is under negative or zero load, also known as droop travel. The same springs are used in Super GT, Formula Nippon, F3, F3000, Super Taikyu, IMSA, Pirelli World Challenge, Rally America, VLN, Le Mans Series, Formula Drift, and many other professional racing
