BMW 3 Series M340i G20 Pre-LCI Carbon Fibre Rear Diffuser by Adro (2018-2022)

Description

ADRO Carbon Fibre Rear Diffuser for BMW M340i / 3 Series G20/G21 Pre-LCI (20192022)

As official ADRO distributors, AUTOID presents the ADRO Carbon Fibre Rear Diffuser for the BMW M340i and 3 Series M Sport G20/G21 pre-LCI models. Constructed from 2×2 weave carbon fibre – the same weave specification used in BMW’s own Genuine M Performance parts – this diffuser provides an OEM-quality aesthetic upgrade to the rear of the 3 Series that sits comfortably alongside factory carbon components without looking out of place.

The ADRO rear diffuser replaces the factory undertray section at the rear bumper with a structured carbon fibre component that adds visual aggression to the rear of the car. Its design was developed specifically for the G20/G21 pre-LCI bumper profile, ensuring a seamless integration that requires no cutting, trimming, or modification of the vehicle. All installation hardware is included.

This diffuser is one part of ADRO’s complete carbon fibre programme for the M340i, which also includes a front splitter, side skirts and a rear spoiler available through AUTOID.

Key Features

• ADRO carbon fibre 2×2 weave – same specification as BMW Genuine M Performance parts
• Engineered specifically for BMW G20/G21 pre-LCI bumper (20192022 build dates)
• Direct bolt-on to existing rear bumper – all installation hardware included
• Part of ADRO’s full carbon kit for the M340i (front splitter, side skirts, spoiler also available)
• AUTOID is an official authorised ADRO distributor

Fitment / Compatibility

FAQs

Q: Is this the same quality as BMW Genuine M Performance carbon?

A: The ADRO diffuser uses the same 2×2 weave specification and gloss lacquer finish as BMW M Performance carbon parts. Visually indistinguishable – though it is an aftermarket component, not produced by BMW.

Q: Will this fit the post-2022 LCI G20?

A: No. This diffuser is for the pre-LCI G20/G21 (20192022). The LCI has a revised rear bumper. Contact us for LCI-specific options.

Q: What else is available from ADRO for the M340i?

A: AUTOID stocks the full ADRO programme for the M340i pre-LCI: front splitter, side skirts, rear diffuser (this product) and rear spoiler. Contact [email protected] for a full kit quote.

Q: Can I install this at home?

A: Yes. The diffuser attaches to existing rear bumper mounting points with all hardware included. Most owners complete the installation in under an hour.

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