BMW 3 Series G20 M Style Gloss Black Rear Diffuser 2019-2022

Upgrade the rear-end styling of your 2019-2022 BMW 3 Series G20 with this M Style Gloss Black Rear Diffuser, designed to add a sharper, sportier, and more aggressive appearance to the factory rear bumper.

Made for BMW G20 3 Series models, this rear diffuser enhances the lower rear fascia with a bold M-inspired profile. Its gloss black finish adds high-contrast detail while giving the vehicle a cleaner and more performance-focused rear-end look.

With its sculpted design and vehicle-specific styling, this diffuser is ideal for BMW owners looking to refresh their 3 Series with a sleek rear bumper upgrade that blends aggressive style, refined fitment, and everyday drivability.

Product Specifications

Key Features

• Designed for 2019-2022 BMW 3 Series G20 models
• M style diffuser design adds a sharper and more aggressive rear-end appearance
• Gloss black finish creates a bold, high-contrast rear bumper accent
• Enhances the lower rear fascia with a performance-inspired profile
• Adds visual depth and a sportier appearance to the rear bumper
• Vehicle-specific styling for a clean and integrated appearance
• Complements other gloss black or carbon-style exterior upgrades such as front lips, side skirts, mirror caps, and spoilers

Configuration Options

• Gloss Black Finish: Sleek black finish for a bold M-inspired rear bumper upgrade

Package Includes

• 1 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 diffuser upgrade
• Test fitting is recommended before final installation
• Additional clips, hardware, adhesive, or minor adjustments may be required depending on vehicle condition and installer preference
• Professional installation is strongly recommended

Fitment

• 2019-2022 BMW 3 Series G20

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.