A collection of components designed to upgrade, repair, or replace the factory suspension system of a specific model-year vehicle. This assembly commonly includes items such as shock absorbers, struts, springs, sway bar links, and bushings, all engineered to work in conjunction to optimize ride quality and handling characteristics for that particular car.
Upgrading or replacing these parts can significantly influence vehicle performance. Benefits range from improved stability and cornering ability to a more comfortable ride. Historically, suspension systems have evolved considerably, with modern kits offering a blend of enhanced performance and ride comfort that was not previously attainable in older vehicles.