3D Design Carbon Fibre/Fiber Rear Diffuser Valance Insert for BMW X4 G02 M40i (2018-2024) | Rear Bumper Lower Trim Aero Diffuser | Carbon Rear Valance/Lip Upgrade | OEM-Style Fit

Transform the rear of your G02 X4 M40i

Give your BMW X4 M40i a serious aesthetic upgrade with this premium real carbon rear valance from 3D Design. Crafted for the G02 platform from 2018 onwards, this carbon rear insert delivers a sharper, more aggressive look with an OEM-plus finish that complements the factory bumper. If you want a clean, motorsport-inspired rear end with a high-gloss weave that turns heads, this is the rear aero piece to choose.

Why enthusiasts choose this carbon rear valance

• Premium real carbon weave for a high-end finish and standout styling
• Designed for the G02 X4 M40i for model-specific fit and an OEM-plus appearance
• Adds a purposeful, performance look without compromising everyday usability
• Ideal for pairing with other exterior upgrades and styling packages

We have fitted this in-house at MJ Modifications and the feedback from owners has been consistently excellent, with customers praising the fit, finish and the way it elevates the rear profile. It is a simple way to add genuine carbon presence to your X4 without overdoing it.

What you receive

• 1 x carbon rear diffuser insert by 3D Design

Vehicle fitment

• BMW X4 G02 M40i, 2018 onwards

Note: suitable for the M40i model only.

Installation

Professional fitting recommended. MJ Modifications, based in Warwickshire, can install this part for you. Request a fitting quote at info@mjmodifications.co.uk.

Ideal search terms

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