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Round Wire Linear Rate Bump Springs 700 lbs/in
Can be used with any aftermarket exhaust system
2008-up G37 Coupe
Spring Rate Drop Front Rear Front Rear Kg/mm Kg/mm Inch Inch 7
600 lbs/in Barrel Type
Swift Round Wire Linear Rate Bump Springs 1400 lbs/in race Round Wire Linear Rate BumpRound Wire Linear Rate Bump Springs 1400 lbs in Swift Bump Springs are made from a proprietary material. 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 avenues.
