BMW 3 Series E90 E91 Glossy Black Rear Diffuser 2005-2013

Upgrade the rear-end styling of your 2005-2013 BMW 3 Series E90 or E91 with this Glossy Black Rear Diffuser, designed to add a sharper, sportier, and more aggressive appearance to the factory rear bumper.

Made for BMW E90 Sedan and E91 Touring models, this rear diffuser enhances the lower rear bumper with a bold glossy black finish. Its sculpted profile adds visual depth to the rear fascia while creating a cleaner and more performance-inspired exterior look.

With its sleek finish and vehicle-specific styling, this rear diffuser is ideal for BMW owners looking to refresh their 3 Series with a high-impact rear-end upgrade that blends style, function, and aggressive detail.

Product Specifications

Key Features

• Designed for 2005-2013 BMW 3 Series E90 and E91 models
• Glossy black finish creates a bold and aggressive rear-end accent
• Rear diffuser design enhances the lower bumper with a performance-inspired profile
• Adds visual depth and a sportier appearance to the rear fascia
• Vehicle-specific styling for a clean and integrated look
• Complements other gloss black or carbon-style exterior upgrades such as front lips, side skirts, mirror caps, and spoilers

Configuration Options

• Glossy Black Finish: Sleek black finish for a bold 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

• 2005-2013 BMW 3 Series E90 Sedan
• 2005-2013 BMW 3 Series E91 Touring

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.