BMW G8X G80 G82 M3 M4 Carbon Fiber LED Rear Center Diffuser

Upgrade the rear profile of your BMW M3 G80 or M4 G82 with this Carbon Fiber LED Rear Center Diffuser, designed to deliver a more aggressive race-inspired appearance.

This center diffuser is based on the original performance-style rear diffuser design and extends approximately 1 inch lower for a sharper, more dramatic rear-end profile. The integrated LED center bar adds a motorsport-inspired lighting detail that can be wired as an always-on rain light or as a brake light.

Made from 100% pre-preg dry carbon fiber with a 2x2 weave and high-gloss clear coat, this diffuser delivers a premium lightweight finish while enhancing the lower rear bumper area of the G8X platform.

Product Specifications

Key Features

• Designed for BMW M3 G80 and M4 G82 models
• Carbon fiber rear center diffuser with integrated LED center bar
• Extended design sits approximately 1 inch lower for a more aggressive rear profile
• LED can be wired as an always-on rain light or brake light
• Simple wiring can be performed by tapping two wires to the outer taillight
• Made from 100% pre-preg dry carbon fiber
• 2x2 carbon fiber weave with high-gloss clear coat finish
• Creates a race-inspired rear-end appearance

Configuration Options

• High-gloss 2x2 pre-preg dry carbon fiber diffuser with LED center bar
• LED wiring option: always-on rain light or brake light

Package Includes

• 1 x Carbon Fiber LED Rear Center Diffuser
• Integrated LED center bar

Note: US vehicles may activate turn signals and brake lights at the same time. These signals can be separated with coding. Professional installation and wiring are recommended.

Installation

• Installs to the lower rear bumper center diffuser area
• LED can be wired as an always-on rain light or as a brake light
• Wiring may be completed by tapping two wires to the outer taillight
• Test fit before final installation
• Ensure all mounting points and wiring connections are secure
• Professional installation is recommended for best results

Fitment

• 2021+ BMW M3 G80
• 2021+ BMW M4 G82

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.