Infiniti FX35 Helper Springs
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Firestone®Coil-Rite™ Air Helper Spring KitCoil-Rite™ Air Helper Spring Kit by Firestone®. Mount inside an existing open coil spring suspension. These air springs provide adjustable spring rates far superior to the standard coil spring. The durable polyurethane air springs...Control the air pressure in the air helper springs for varying loads and road conditionsSpring performance can be altered as easily as inflating a tire$111.58 - $296.23 - Firestone Suspension®Coil-Rite™ Rear Air Helper Spring Kit (4118)Coil-Rite™ Rear Air Helper Spring Kit (4118) by Firestone Suspension®. Mount inside an existing open coil spring suspension. These air springs provide adjustable spring rates far superior to the standard coil spring. The durable...Control the air pressure in the air helper springs for varying loads and road conditionsSpring performance can be altered as easily as inflating a tire$144.12
