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Swift Spec-R Springs 15+ LEXUS RC-F USC10 4T914R
125 lbs/in
Flat Wire Linear Rate Bump Springs 1100 lbs/in
475 lbs/in
-Easily install for weekend use or for install at the track
Swift Round Wire Linear Rate Bump Springs 6000 lbs/in Assist Springs Swift Spec-R Springs 15+ LEXUSRound Wire Linear Rate Bump Springs 6000 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.
