Swift Springs Coilover Assist Springs - ID: 64mm (2.5") RX 2009 BMW 3 Series RWD

2009 BMW 3 Series RWD

2016 Maserati Ghibli RWD (w/ Skyhook)

1983 Mazda RX-7 GSL (FB)

1999 Honda Civic Coupe Sedan

0 kg/mm (784 lbs/in) Spring Type Linear Top Mount (Front) Pillowball Mount with camber adjustment Top Mount (Rear) Pillowball Mount no camber adjustment Notes True Rear Coilover Vehicle Fitment

Swift Springs Coilover Assist Springs - ID: 64mm (2.5") RX 2009 BMW 3 Series RWDSwift Springs Coilover Assist Springs in 64mm (2. 5") ID provide a dynamic step linear rate that fine tunes rebound travel and prevents inside wheel lift during hard cornering. Unlike helper springs that have minimal rate contribution, Swift assist springs use a heavier rate to actively manage suspension behavior during droop. Every Swift assist spring compresses to the same height regardless of rate, allowing drivers to swap between rates without