BMW M Performance G8X M3 / M4 Carbon Rear Diffuser

The BMW M Performance G8X M3 / M4 Carbon Rear Diffuser is a genuine OEM aerodynamic component that anchors the rear end of the G80 M3 and G82 M4 with a purposeful, motorsport-derived presence. Manufactured from carbon fiber reinforced plastic, this rear diffuser delivers the aggressive visual character of the M Performance carbon exterior program while maintaining factory-correct fitment and build quality.

The exposed carbon fiber weave texture is inherent to the material's high rigidity and low mass; qualities that define its widespread use in motorsport. As the cornerstone of the M Performance rear carbon package, this diffuser pairs with the optional M Performance Carbon Rear Winglet Set for a complete, cohesive rear aero treatment. No modifications are required; all components mount to factory attachment points.

Product Details

• Genuine BMW M Performance carbon rear diffuser for G8X M3 / M4
• Carbon fiber reinforced plastic construction; lightweight and highly rigid
• Fits G80 M3 Sedan, G82 M4 Coupe, and G83 M4 Convertible
• Optional: M Performance Carbon Fiber Rear Winglet Set (sold separately)
• BMW Part Number: 51128075031

Vehicle Applications

• BMW M3 (G80)
• BMW M4 (G82)

Notes

• Genuine BMW OEM component
• Pair with the M Performance Carbon Rear Winglet Set (sold separately) to complete the rear carbon package.