Transform the rear-end of your. G20 or G21 3. Diffuser, complete with integrated LED brake light for added safety and style. This high-performance styling component is designed for M Sport rear bumpers, delivering a motorsport-inspired look with functional aero benefits. And finished in a deep gloss UV-protected clear coat, this diffuser features sculpted fins and a sleek central LED light that activates with braking or hazard signals. Perfect for owners seeking to elevate both performance appeal and visual impact. Diffuser upgrade with integrated LED brake light. M Sport rear bumper. Bold rear-end styling with deep aerodynamic fins. Gloss UV-protected finish for lasting durability. Enhances appearance and safety with LED integration.