3DDesign Carbon Fibre/Fiber Rear Diffuser / Valance / Splitter (Type 1) for BMW 5 Series Touring Estate Wagon G31 M Sport Rear Bumper 2017-2023 (pre-LCI & LCI) – Carbon Rear Bumper Insert / Aero Performance Trim

Upgrade the rear of your BMW G31 Touring with this premium 3DDesign carbon fibre rear valance (Type 1). Crafted for the M Sport bumper on the 2017–2023 5 Series estate, this aero insert delivers a sharp OEM+ look, lightweight performance styling and a more purposeful stance without compromising everyday usability. Expect tight panel gaps, factory-style mounting points and a deep gloss carbon finish that elevates the whole back end of your car.

If you’re searching for a carbon rear bumper insert, carbon lower trim, rear splitter, performance rear valance or aero diffuser for the G31 5 Series Touring, this is the high-end choice. It’s designed for the M Sport bumper only, fits both pre-LCI and LCI models, and integrates cleanly with the original rear bumper for a seamless, premium result.

• Premium carbon construction for strength-to-weight and long-lasting clarity
• OEM+ fitment for the G31 M Sport rear bumper with precise alignment
• Aggressive yet refined styling that complements factory lines
• Enhances airflow under the rear of the car for a sportier look and feel
• Ideal alternative to dealer styling packs and universal “body kit” parts

Our team has run this upgrade on customer cars and it never fails to transform the rear profile. Fitment is excellent, finish is superb and feedback has been consistently positive from owners wanting a subtle-but-serious visual boost to their 5 Series Touring.

Compatibility

• BMW 5 Series Touring G31 M Sport (2017–2023), pre-LCI and LCI
• For M Sport rear bumper only
• Not suitable for G30 Saloon

What’s in the box

• 1 x 3DDesign carbon rear valance (Type 1) for G31 M Sport
• 1 x Fitting hardware set

Why choose this carbon upgrade

• True premium styling piece from a renowned Japanese tuning house
• Gives the rear end a wider, lower, more athletic appearance
• Pairs perfectly with factory wheels and suspension or further mods
• Perfect for enthusiasts seeking an OEM+ finish rather than generic aftermarket parts

Installation and support

Prefer professional fitting? Book with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability. We can supply, fit and advise on complementary upgrades for a cohesive look.

Common search terms: BMW G31 carbon rear valance, BMW 5 Series Touring carbon rear insert, G31 M Sport rear splitter, 5 Series estate rear bumper diffuser, G31 carbon aero, BMW wagon carbon styling, OEM+ BMW rear carbon, performance rear bumper trim.