BMW M3/M4 G8X Carbon Rear Diffuser (G80 G82 G83) - Gloss Carbon Fibre Rear Valance/Rear Splitter Bumper Insert, OEM-Style Lower Bumper Lip Trim, Perfect Fitment - UK Stock, Free 2-Day Express Delivery

Carbon Rear Valance Upgrade for BMW G80 M3, G82 M4 and G83 M4

Give the back end of your G8X the finish it deserves with our genuine carbon fibre rear valance. Designed for a precise OEM-style fit on the BMW M3 G80 saloon and BMW M4 G82 coupe and G83 convertible, this lightweight lower bumper insert adds a sharper, more aggressive look without compromising quality or alignment. Stock held in the UK for quick dispatch and rapid delivery.

Key benefits

• Genuine carbon fibre construction for a premium, high-gloss appearance
• Exact-fit design tailored to the G80, G82 and G83 platform
• Transforms the rear profile with bolder aero styling and deeper fins
• Lightweight upgrade that complements factory body lines
• Premium finish that looks factory-plus and elevates road presence

Compatible models

• BMW M3 G80 saloon
• BMW M4 G82 coupe
• BMW M4 G83 convertible

What is included

• 1 x carbon fibre rear diffuser assembly for BMW G8X M3/M4

Why buy from us

• UK-held stock for fast turnaround and hassle-free service
• Installed by us on customer cars with excellent feedback on fit and finish
• Trusted performance styling from MJ Modifications

Installation

Professional fitting recommended. We offer expert installation at MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Shipping and availability

• UK stock ready to ship
• Free express UK delivery

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Upgrade your G8X with a carbon rear diffuser that fits right, looks incredible and ships quickly from the UK. Add to basket and transform your M today.