2018-2023 BMW F90 M5 3D Style Rear Bumper Diffuser Lower Valance

Upgrade the rear-end styling of your BMW M5 F90 with this 3D Style Carbon Fiber Rear Bumper Diffuser Lower Valance, designed to add a more aggressive performance-inspired appearance.

This rear diffuser is designed for OEM M5 rear bumpers and features shark fin vortex styling with lower valance pieces that sit under the exhaust tips, enhancing both visual presence and airflow efficiency.

Made from lightweight carbon fiber with a UV-resistant clear coat, this diffuser delivers a premium finish, durable construction, and a bold rear profile for 2018-2023 BMW F90 M5 models.

Product Specifications

Key Features

• Designed for 2018-2023 BMW F90 M5 models with OEM M5 rear bumper
• 3D style rear diffuser adds an aggressive performance-inspired rear profile
• Shark fin vortex design enhances the rear bumper’s aerodynamic appearance
• Lower valance pieces sit under the exhaust tips for a complete rear-end upgrade
• Lightweight carbon fiber construction provides strength and premium styling
• UV-resistant clear coat helps protect against fading
• Designed to replace the original rear diffuser

Configuration Options

• 3D style carbon fiber rear diffuser lower valance
• Designed for OEM BMW F90 M5 rear bumper fitment

Package Includes

• One carbon fiber rear diffuser lower valance
• Lower valance pieces for under the exhaust tips
• Mounting components as supplied

Note: Designed for OEM BMW F90 M5 rear bumpers only. Installation may require original diffuser removal, bumper removal, drilling, and adjustment for proper fitment. Professional installation is highly recommended.

Installation

• Remove the original rear diffuser before installation
• Bumper removal may be required for proper access and fitment
• Test fit and align all diffuser and lower valance pieces before final mounting
• Drilling may be required for secure installation
• Professional installation is highly recommended for best fit, alignment, and finish

Fitment

• 2018-2023 BMW M5 F90 with OEM M5 rear bumper

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.