2017 - 2024 Audi RS4 B9 & B9.5 BKSSII Style Roof Spoiler

Give your Audi RS4 B9 or B9.5 a sleeker and more aggressive rear profile with this BKSSII Style carbon fiber roof spoiler. Designed to enhance the upper rear roofline, this spoiler adds a bold sport-inspired detail while maintaining a clean factory-like appearance.

The BKSSII Style roof spoiler is designed to improve aerodynamic presence while following the vehicle’s original roofline. Its contoured profile blends sportiness with sophistication, making it an ideal upgrade for daily drivers, show builds, and carbon fiber exterior styling packages.

Crafted from CFRP, MTCF, FGCF, or DryCF material options, this roof spoiler delivers lightweight construction, durable quality, and premium exterior appeal. Designed for 2017-2024 Audi RS4 B9 and B9.5 models, each package includes one roof spoiler.

Product Specifications

Key Features

• BKSSII Style roof spoiler designed for the Audi RS4 B9 and B9.5
• Designed for 2017-2024 Audi RS4 models
• Adds a sleeker and more aggressive rear roofline appearance
• Available in CFRP, MTCF, FGCF, and DryCF material options
• Enhances the rear roof area with premium carbon fiber styling
• Contoured design follows the factory roofline
• Improves aerodynamic presence while maintaining a refined exterior look
• Installs using double-sided tape and adhesive
• Ideal for daily drivers, show builds, and carbon fiber exterior upgrades
• Includes one roof spoiler

Configuration Options

• Material Option: Available in CFRP, MTCF, FGCF, or DryCF material options
• Roof Spoiler Setup: BKSSII Style roof spoiler enhances the RS4 upper rear profile
• Installation Setup: Designed for installation using double-sided tape and adhesive
• Exterior Styling: Carbon fiber, matte carbon fiber, forged carbon fiber, and dry carbon fiber finishes add a premium sport-inspired detail
• Package Setup: Includes one roof spoiler

Package Includes

• One roof spoiler

Note: Professional installation is recommended. Test fitting is recommended before final installation. This roof spoiler is designed to enhance the Audi RS4 B9/B9.5 rear roofline with BKSSII-inspired carbon fiber styling. Final fitment may require minor adjustments depending on the vehicle and selected material option.

Installation

• Designed for installation on the rear roofline area
• Installs using double-sided tape and adhesive
• Professional installation is recommended for proper alignment and secure fitment
• Clean and prep the mounting surface before installation
• Test fitting is recommended before final mounting

Fitment

• 2017-2024 Audi RS4 B9
• 2017-2024 Audi RS4 B9.5

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.