Genuine BMW M Performance F90 M5 Saloon Carbon Fibre Rear Diffuser (2016+) - OEM Rear Bumper Insert/Valance | Rear Lower Apron Trim | Carbon Fiber Tail Diffuser | OE-Spec Back Bumper Finisher | Part 51192446628

Original BMW M5 F90 Rear Lower Diffuser in Carbon Fibre | OE-Spec Back Bumper Insert | Part No. 51192446628

Transform the back end of your F90 M5 with BMW’s factory carbon rear lower diffuser. This OE-spec carbon fibre lower bumper insert is the exact BMW M Performance item for the F90 platform, giving a sharper motorsport look, flawless factory fitment and a premium carbon weave that ties in perfectly with other BMW carbon accessories. If you are hunting for an authentic rear lower apron, rear bumper insert, carbon rear valance or back bumper carbon trim for the M5 saloon, this is the BMW part you need: 51192446628.

We have installed this piece on our own builds and customer cars and it is outstanding. The alignment is spot on, the finish is superb and the quality is exactly what you expect from an Original BMW M Performance component. Our clients consistently comment on the perfect fit, the deep gloss carbon, and the way it completes the rear with a purposeful, factory-fresh appearance.

Highlights

• Original BMW M Performance aero trim for the M5 F90 saloon
• Real carbon fibre construction with a high-quality, uniform weave
• Direct replacement rear lower bumper insert for a more aggressive look
• Uses existing mounting points and OE hardware for a clean, precise install
• UV and heat resistant finish for long-term durability
• Designed to integrate neatly around the exhaust surrounds
• Factory-approved component, no additional TÜV or ABE paperwork needed

Why choose genuine BMW for your F90

• OE fit, OE quality and OE styling that preserves the original body lines
• No guesswork on compatibility, engineered specifically for the F90 chassis
• Value-enhancing upgrade that looks like it came from the factory
• Consistent carbon finish to match other BMW M Performance carbon parts

Compatibility

BMW M5 F90, 2016 onwards.

Installation and fitment notes

• Install between 18 °C and 35 °C for best adhesion
• Test-fit all pieces before final fixing
• Bonding surfaces must be completely dry, clean and free from wax or grease
• For cars without tow bar
• If the vehicle has Comfort Access SA322, the Smart Opener function will be deactivated
• Mounts using vehicle-side fixing points

Prefer professional fitting? MJ Modifications in Warwickshire can install this part and carry out a full alignment check. Request a fitting quote at info@mjmodifications.co.uk.

Part number

51192446628

Manufactured by

BMW — Genuine BMW M Performance Parts

Warranty

Two years manufacturer warranty for UK customers and one year for international customers when a VIN is provided at checkout on compatible vehicles.

Free compatibility check

For peace of mind, provide your UK registration or the last 7 digits of your VIN at checkout and we will confirm fitment before dispatch.

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