Upgrade the rear of your BMW 4 Series F32, F33, or F36 with this aggressive carbon fibre rear diffuser featuring an integrated LED light. Designed specifically for M Sport bumpers, this premium aftermarket part enhances both performance styling and road presence. Crafted from high-quality carbon fibre with precision fitment, the diffuser improves aerodynamics while providing a sportier, track-inspired look. The included LED brake light adds functional design and increased visibility, especially in low-light conditions. Perfect for drivers seeking OEM+ upgrades or show-car aesthetics, this diffuser is a standout modification for any BMW enthusiast.