A collection of aftermarket components designed to alter the exterior aesthetics of a specific model year vehicle. These typically include front and rear bumpers, side skirts, and occasionally, a rear spoiler. For instance, a kit marketed for a late 1990s compact car could drastically change its appearance, giving it a sportier or more aggressive look.
The appeal stems from personalization, allowing owners to distinguish their vehicle from others. Benefits can extend beyond visual enhancements; some designs may offer slight aerodynamic improvements. Historically, such modifications gained popularity with the rise of tuner culture, where individuality and performance modifications were highly valued.