Swift Springs Coilover Helper Springs - ID: 25mm (1") / Length: 6" hks-hipermax-d-nob-spec-coilovers 2016 Ford Mustang w/o MagneRide

2016 Ford Mustang w/o MagneRide (S550)

2021 BMW M2 (F87/Pre-Facelift)

1989 BMW 3 Series 325es (E30)

optimized for the GR86's double-wishbone rear and MacPherson strut front suspension

2004 Toyota Mark X

Swift Springs Coilover Helper Springs - ID: 25mm (1") / Length: 6" hks-hipermax-d-nob-spec-coilovers 2016 Ford Mustang w/o MagneRideSwift Springs Coilover Helper Springs in 25mm (1") ID and 6" length prevent your main coilover spring from dismounting the perch during droop travel, without adding meaningful spring rate to the stack. The 6" free length provides additional droop coverage for setups with longer shock travel, keeping the spring securely seated under negative or zero load conditions. Swift helper springs are precision engineered to have minimal effect on your main