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Swift Sport Springs 07-15 Infiniti Q50 RWD KV37 4N909 (Red Sport Included) Spring Rate Drop Front Rear Front Rear Kg/mm Kg/mm Inch Inch 9
Round Wire Linear Rate Bump Springs 1400 lbs/in
40 lbs - disc ring weight
Screw CNC cut out of aluminum alloy
160 lbs/in
Swift Spring bag 13" X OD 5.0" exhaust Swift Sport Springs 07-15 InfinitiSwift Spring bag 13" X OD 5. 0" (1 bag for 1 spring). 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
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