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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
Supports both twin turbo N54 and single turbo N55 BMW 135i variants
3" B-pipe to dual 3" muffler
Best flowing & sounding exhaust on the market today
Round Wire Linear Rate Bump Springs 3000 lbs/in
Price is for a rear axle set(Pair) replacement disc rings only
Swift Round Wire Linear Rate Bump Springs 400 lbs/in Metric Coilover Springs Supports both twin turbo N54Round Wire Linear Rate Bump Springs 400 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.
