Coilover Components — Springs, Mounts & Hardware

Coilover Components — Springs, Mounts & Hardware

Coilover components include the springs, pillow ball mounts, camber plates, top hats, bump stops, and hardware that allow you to build, service, or upgrade an existing coilover system rather than purchasing a complete new kit. Sourcing individual components extends the service life of a quality coilover investment and allows fine-tuning of spring rates and ride height without replacing the entire assembly.

Popular Upgrades

Replacement coilover springs in progressive and linear rates are the most frequently purchased components, allowing spring rate changes to suit different driving applications without swapping the full shock body. Pillowball upper mounts improve steering response and reduce deflection compared to stock rubber upper mounts, making them a popular upgrade on track builds. Coilover lock nuts, spanner wrenches, and ride height adjustment sleeves are essential service hardware for ongoing coilover maintenance and adjustment.

What spring rate should I choose for a street coilover setup?

For a street coilover setup, a spring rate in the 6 to 10 kg/mm range is common for most compact and sports cars. Heavier vehicles and builds with aggressive lowering may require stiffer rates to prevent coil bind. The ideal spring rate depends on vehicle weight, desired ride quality, and whether the car will also see track use. A softer front spring and stiffer rear spring arrangement helps balance oversteer tendency on most front-engine cars.

When should coilover components be replaced?

Coilover spring replacement is needed when springs show visible corrosion, have settled and no longer hold target ride height, or when a spring rate change is desired for a different application. Pillow ball mounts should be replaced when play develops in the bearing that causes noise or vague steering response. Regular inspection during alignment appointments catches worn components before they affect handling performance.

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