2021–2025 BMW M3 G80 / M4 G82 G83 Dry Carbon Rear Bumper Diffuser Trim

Enhance the rear-end appearance of your BMW G80 M3 or G82/G83 M4 with this Dry Carbon Rear Bumper Diffuser Trim. Designed to add a sharp and aggressive detail, this rear trim upgrade replaces the OEM plastic pieces while maintaining the vehicle’s sleek factory rear diffuser design.

This dry carbon diffuser trim is designed to elevate the rear profile with a clean, performance-inspired carbon fiber finish. It installs onto the factory rear diffuser area without the need for drilling, making it an ideal upgrade for drivers looking to enhance street presence, show appeal, and premium exterior styling.

Crafted from lightweight dry carbon fiber, this rear bumper diffuser trim delivers durable construction, precise fitment, and a refined motorsport appearance. Designed for 2021-2025 BMW G80 M3 and G82/G83 M4 models, each package includes one dry carbon fiber rear diffuser trim with tow hook cover.

Product Specifications

Key Features

• Dry carbon rear bumper diffuser trim designed for the BMW G80 M3 and G82/G83 M4
• Designed for 2021-2025 BMW M3 and M4 models
• Replaces the OEM plastic rear diffuser trim pieces
• Includes tow hook cover for a complete rear trim upgrade
• Crafted from lightweight dry carbon fiber
• Adds a sharp and aggressive rear-end detail while maintaining the factory look
• Designed to fit the factory rear diffuser area
• No drilling required for installation
• Ideal for street builds, show styling, and premium exterior customization
• Includes one dry carbon fiber rear diffuser trim package

Configuration Options

• Rear Trim Setup: Dry carbon diffuser trim replaces the OEM plastic rear trim pieces
• Tow Hook Cover Setup: Includes matching tow hook cover for a complete rear-end finish
• Installation Setup: Designed for factory rear diffuser fitment with no drilling required
• Exterior Styling: Dry carbon fiber finish adds a premium motorsport-inspired rear detail

Package Includes

• One dry carbon fiber rear diffuser trim
• One tow hook cover

Note: Professional installation is recommended. Test fitting is recommended before final installation. This rear bumper diffuser trim is designed as a replacement for the OEM plastic rear diffuser trim pieces and includes the tow hook cover. Final fitment may require minor adjustments depending on the vehicle condition.

Installation

• Designed for installation on the rear bumper / factory rear diffuser area
• No drilling required for installation
• Professional installation is recommended for proper alignment and secure fitment
• Test fitting is recommended before final mounting
• Some adjustment may be required during installation for best results

Fitment

• 2021-2025 BMW G80 M3
• 2021-2025 BMW G82 M4
• 2021-2025 BMW G83 M4

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.