BMW M5 F90 Carbon Fiber Middle Rear Diffuser 2018-2023

Upgrade the rear-end styling of your 2018-2023 BMW M5 with this Carbon Fiber Middle Rear Diffuser, designed to add a sharper, more aggressive, and performance-inspired look to the vehicle’s rear bumper.

Made for the BMW M5 F90 platform, this middle diffuser enhances the rear fascia with a refined carbon fiber accent that complements the factory body lines. Its sporty profile helps create a more dynamic appearance while maintaining a clean, vehicle-specific fit.

Constructed from carbon fiber, this diffuser is ideal for M5 owners looking to elevate exterior styling with a lightweight, premium-quality rear-end upgrade.

Product Specifications

Key Features

• Designed for 2018-2023 BMW M5 models
• Carbon fiber construction provides a lightweight and premium exterior upgrade
• Middle diffuser design adds a sharper and more aggressive rear-end appearance
• Enhances the factory rear bumper with a performance-inspired carbon fiber accent
• Vehicle-specific fitment for a clean and integrated look
• Complements other carbon fiber exterior upgrades such as front lips, side skirts, mirror caps, and spoilers

Configuration Options

• Carbon Fiber Finish: Premium carbon fiber styling for a refined rear bumper upgrade

Package Includes

• 1 Middle Rear Diffuser

Note: Professional installation is recommended to ensure proper alignment, secure mounting, and best overall fitment.

Installation

• Installs onto the rear bumper as a middle diffuser upgrade
• Test fitting is recommended before final installation
• Additional clips, hardware, adhesive, or minor adjustments may be required depending on vehicle condition and bumper configuration
• Professional installation is strongly recommended

Fitment

• 2018-2023 BMW M5
• Chassis: F90

United States: Free shipping available to the lower 48 states across all items. Other states will incur a shipping charge.

Worldwide: Free shipping is available for Complete Headlights, Taillights, DRLs. For custom headlight retrofits, carbon fiber products, and performance products, there will be a shipping charge.  

Please note:
• For Retrofits, you are purchasing a headlight modification service.
• If you select "Shipping own headlights to BayOptiks for modification", you are required to send us your headlights.
• If you choose "Purchase new OEM headlights", we will order and modify a new OEM headlight for you.
• Once your customizations are complete, we will ship it to you!

• Complete Headlights: 3-5 business days for order processing plus shipping time.
• Custom & Pre-Built Headlights: 6-8 weeks depending on the complexity and component availability.
• New OEM and cores: 6-8 weeks plus an additional 4-8 weeks as these are special orders base on the vehicle VIN due to different versions (North American, European, etc.)
• DRLs, Taillights, Brake Pads, and Carbon Fiber Aero: 3-5 business days for order processing, plus shipping time.
• Lens Replacements: 1-3 weeks plus shipping time.

Please note, we do not have control over the time frames of our vendors, manufacturers, and delivery services as they may delay processes in regards to components and shipment.