BMW M140i/M135i LCI F20 F21 Carbon Fiber Rear Diffuser (2015-2019)

Finish the rear of your BMW 114i, 116i, 118i, 120i, 125i, M135i and M140i (F20, F21) with the Carbon Fiber Rear Diffuser, adding aggressive vertical fins and a motorsport-derived lower section that ties the whole rear together.

Key Features

• Material & Finish: Laid up in genuine carbon fiber with a clear-coated gloss weave that resists fading and stone chips.
• Design: Sculpted fin design adds aggression and visual downforce to the rear.
• Precision Fitment: Modelled on OEM geometry for a clean, direct fit with no cutting or trimming required.
• Easy Installation: Fits using factory mounting points and included hardware — a straightforward upgrade.

Fitment

Engineered specifically for the BMW 114i, 116i, 118i, 120i, 125i, M135i and M140i (F20, F21) (2015–2019). Confirm your exact model and chassis code before ordering.

Why Form Industries

Every Form Industries part is designed for a true OEM-quality fit and finished to last. Ships from our U.S. facility with responsive, enthusiast-run support.

Shipping

Form Industries products ship directly from our U.S. facility in Knoxville, Tennessee for fast, reliable nationwide delivery.