BMW 3 Series E90 Sedan Carbon Fiber Rear Diffuser 2005-2013

Upgrade the rear-end styling of your 2005-2013 BMW 3 Series E90 Sedan with this Carbon Fiber Rear Diffuser, designed to add a sharper, sportier, and more performance-inspired appearance to the factory rear bumper.

Made for BMW E90 Sedan models, this rear diffuser enhances the vehicle’s rear fascia with a clean carbon fiber profile. Its sculpted design adds visual depth to the lower bumper while creating a more dynamic and refined exterior look.

Constructed from carbon fiber, this diffuser is ideal for BMW owners looking to elevate their 3 Series with a lightweight, premium-quality rear-end upgrade that blends style and performance-focused detail.

Product Specifications

Key Features

• Designed for 2005-2013 BMW 3 Series E90 Sedan models
• Carbon fiber construction provides a lightweight and premium exterior upgrade
• Rear diffuser design adds a sharper and more aggressive rear-end appearance
• Enhances the factory rear bumper with a performance-inspired lower profile
• Vehicle-specific styling for a clean and integrated appearance
• Complements other carbon fiber exterior upgrades such as front lips, mirror caps, side skirts, and spoilers

Configuration Options

• Carbon Fiber Finish: Premium carbon fiber styling for a refined 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

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.