Swift Round Wire Linear Rate Bump Springs 1400 lbs/in race swift spec-r springs are designed

swift spec-r springs are designed to the upper limits of the oem shock valving

Can be used with any aftermarket exhaust system

we expect both street and circuit users to experience an increase in all aspects of suspension tuning from performance to comfort

Round Wire Linear Rate Bump Springs 700 lbs/in

Swift Round Wire Linear Rate Bump Springs 1400 lbs/in race swift spec-r springs are designedRound 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.