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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28
175 lbs/in Barrel Type
Supports both twin turbo N54 and single turbo N55 BMW 135i variants
Spring Rate Drop Front Rear Front Rear Kg/mm Kg/mm Inch Inch 9
Perfect for use on turbo downpipes
Swift Round Wire Linear Rate Bump Springs 500 lbs/in exhaust 175 lbs/in Barrel TypeRound Wire Linear Rate Bump Springs 500 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.
