The ADRO BMW G42 M240i Carbon Rear Diffuser is a 3D-scanned, bolt-on carbon fiber rear diffuser that finishes the G42 M240i rear end.

Sold as a single rear diffuser (mounting hardware included).

ADRO Carbon Rear Diffuser for G42 BMW M240i [A14B50-1301]

The ADRO BMW G42 M240i Carbon Rear Diffuser is developed from 3D scans of the chassis and molded in genuine carbon fiber with a uniform twill weave. Its stepped fins manage the air leaving the underbody for a more planted rear end, while the aggressive lower profile finishes the back of the car with motorsport intent. It bolts to factory mounting points with no cutting required. Built for the G42 230i and G42 M240i platform, it carries ADRO’s design-led, motorsport-grade approach end to end.

Features

• Genuine carbon fiber with a uniform 2×2 twill weave and UV-stable gloss clear coat
• 3D-scanned fitment for OEM-precise, panel-gap-accurate alignment
• Stepped fins manage underbody airflow for a more planted rear end
• Bolt-on installation using factory mounting points; no cutting required
• Lightweight carbon construction
• Level-2 install difficulty; professional installation recommended

BMW G42 M240i Carbon Rear Diffuser Specifications

• Material: Genuine carbon fiber
• Weave: Twill (2×2)
• Finish: Gloss clear coat
• Fitment method: Bolt-on, factory mounting points
• Position: Rear lower diffuser
• Sold as: Single rear diffuser

Applications

• BMW 230i: G42 | 2022 to present (B48 2.0L turbo)
• BMW M240i: G42 | 2022 to present (B58 3.0L turbo)

Notes

• Sold as as a single rear diffuser. Mounting hardware is included.
• Fitment is specific to the platforms listed in Applications. If you are unsure about your configuration, Contact us with your VIN and we will confirm the correct part for your build.
• The carbon fiber finish is a styling product. Professional installation is recommended to protect paint and ensure correct panel-gap alignment.

Frequently Asked Questions

• Does this ADRO rear diffuser fit the G42 BMW 230i and G42 BMW M240i? Yes. The ADRO BMW G42 M240i Carbon Rear Diffuser is developed from 3D-scanned fitment for the G42 BMW 230i and G42 BMW M240i and bolts on using factory-style mounting points, so it fits without guesswork.
• Is the rear diffuser made from real carbon fiber? Yes. The ADRO BMW G42 M240i Carbon Rear Diffuser is made from genuine carbon fiber with a uniform twill weave and a protective clear coat, so the weave stays deep and consistent and resists fading from sun exposure.
• Does installation require cutting or drilling? No. The ADRO BMW G42 M240i Carbon Rear Diffuser is a bolt-on part that uses factory-style mounting points. No cutting, trimming, or permanent modification to the car is required for a standard installation.
• What is included in the box? Each order includes the ADRO BMW G42 M240i Carbon Rear Diffuser as a single rear diffuser along with the mounting hardware needed for installation.
• Does ADRO offer a warranty? ADRO backs its carbon fiber components against manufacturing defects. Contact us with your order details and we will help coordinate any warranty claim directly with ADRO.

About ADRO

ADRO is a carbon fiber aerodynamics company built by automotive designers, Formula 1 aerodynamicists, and master craftsmen. Every ADRO component is developed with 3D-scanned fitment and motorsport-grade carbon construction, delivering OEM-precise, bolt-on installation and a finish that matches the depth and consistency of factory carbon. From street-styling aero to the track-focused ADRO Racing Division (ARD), ADRO designs parts that look the part and earn their place on the car.

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