RKP Carbon Fibre Rear Diffuser / Valance for BMW M5 F90 (5 Series) | Gloss 2x2 Twill Carbon Fiber Rear Bumper Insert, Skirt & Splitter Trim | Triple-Fin Design | OEM-Plus Fit | Made in USA

Transform the rear of your BMW M5 F90 with a premium carbon lower valance

Give your F90 chassis the assertive, motorsport look it deserves with this RKP carbon fibre rear lower trim. Hand built in the United States and finished in a deep, high-gloss clear coat, this carbon composite insert replaces the standard rear panel and adds a purposeful triple-fin design that amplifies road presence, especially alongside larger exhaust tips or a performance backbox.

We have installed this piece on multiple customer cars and the response has been outstanding. Fit is tight and precise, the weave alignment is spot on, and the shine is rich and consistent. If you want an OEM-plus aesthetic with genuine quality, this is the rear aero piece F90 owners keep coming back for.

Highlights

• Precisely moulded for the BMW M5 F90 platform for an OEM-plus result
• Factory-style 2x2 twill weave for a cohesive match with other exterior carbon upgrades
• DuPont high-gloss clear coat, machine buffed to a mirror finish and sealed for UV protection
• Lightweight, rigid carbon construction for long-term durability
• Manufactured in the USA with exceptional attention to detail

The sculpted triple strakes give the rear bumper a more aggressive, performance-focused stance without compromising everyday usability. The clear-coated, gloss finish enhances the depth of the carbon texture and keeps the surface looking fresh under showroom lights or in direct sunlight.

Why this upgrade

Stock rear inserts can look reserved on an M car. This RKP carbon rear valance adds the motorsport-inspired detail that completes the back end of the F90, pairing perfectly with other exterior styling pieces. Customers love the clean panel gaps, consistent twill pattern, and the way it elevates the rear profile from every angle.

Compatibility

BMW M5 F90 saloon. Designed specifically for the F90 platform.

Installation

Professional fitting recommended. Book installation with MJ Modifications in Warwickshire. For a fitting quote, email info@mjmodifications.co.uk.

Looking for this product under different names

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