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The BMR drag lowering spring set for 2015–2023 S550 and 2024 S650 Mustang is tuned for straight-line launches with a 150 lb/in front and 800 lb/in rear spring rate to promote weight transfer while lowering the car. Built for drag-race use but streetable, springs are CNC wound from chrome-silicon wire, stress-relieved, shot-peened and computer tested. Red powdercoat resists corrosion; BMR provides a lifetime warranty against spring sag and install time is about 3–4 hours.
BMR 15-17 S550 Mustang Drag Version Lowering Springs (Set Of 4) - Red
