Tesla Model Y Street Series Gloss Black Rear Diffuser 2020+

Upgrade the rear-end appearance of your 2020+ Tesla Model Y with this Street Series Gloss Black Rear Diffuser. Designed as a complete replacement diffuser, this rear upgrade gives the Model Y a cleaner, sportier, and more aggressive lower bumper profile.

The Street Series design complements the factory rear bumper with a sleek gloss black finish, creating a sharper exterior look without requiring an additional trunk spoiler. Its clean shape helps transform the rear of the Model Y while maintaining a refined OEM+ appearance.

Constructed from durable ABS plastic, this rear diffuser is built for everyday use while delivering a bold styling upgrade. Rear bumper removal is required for installation.

Product Specifications

Key Features

• Designed for 2020+ Tesla Model Y models
• Street Series rear diffuser design transforms the lower rear bumper profile
• Complete replacement diffuser for a cleaner rear-end upgrade
• Gloss black finish for a sleek and sporty appearance
• Constructed from durable ABS plastic
• Complements the rear bumper without needing an additional trunk spoiler
• Adds a sharper OEM+ exterior look to the Model Y
• Rear bumper removal required for installation

Configuration Options

• Street Series gloss black ABS rear diffuser for Tesla Model Y models

Package Includes

• Gloss black rear diffuser

Note: Rear bumper removal is required for installation. Professional installation is recommended to ensure proper alignment, secure mounting, and the best overall fitment.

Installation

• Remove the rear bumper before installation
• Remove the factory rear diffuser from the bumper
• Test fit the replacement diffuser before final securing
• Install the Street Series rear diffuser as a complete replacement piece
• Reinstall the rear bumper after confirming alignment and fitment
• Professional installation is recommended for best results

Fitment

• 2020+ Tesla Model Y

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.