Porsche 911 (992) BKSS Style Rear Lip (2019-2023)

Upgrade the rear end of your Porsche 911 992 with this BKSS Style carbon fiber rear diffuser. Designed to add an aggressive and motorsport-inspired appearance, this exterior upgrade enhances the lower rear bumper area while integrating cleanly with the factory lines of the modern 911.

The rear diffuser adds visual depth and aerodynamic presence to the back of the vehicle, creating a sharper and more performance-focused rear profile. Its BKSS Style design gives the Porsche 911 992 a refined yet purposeful look that suits street, show, or track-inspired builds.

Available in CFRP, FGCF, or DryCF material options, this rear diffuser offers lightweight exterior styling appeal, durable construction, and premium finish choices. Designed for 2019-2023 Porsche 911 992 Carrera S, 4, 4S, Targa, and Cabriolet models, each package includes one rear diffuser.

Product Specifications

Key Features

• BKSS Style carbon fiber rear diffuser designed for the Porsche 911 992
• Designed for 2019-2023 Porsche 911 992 Carrera S, 4, 4S, Targa, and Cabriolet models
• Adds a sharper, more aggressive, and motorsport-inspired rear-end appearance
• Available in CFRP, FGCF, and DryCF material options
• Enhances the lower rear bumper area with premium carbon fiber styling
• Designed to improve aerodynamic presence and rear airflow styling
• Integrates cleanly with the Porsche 911 992 factory body lines
• Creates a refined and performance-focused rear profile
• Lightweight material options add premium exterior styling appeal
• Includes one rear diffuser

Configuration Options

• Material Option: Available in CFRP, FGCF, or DryCF
• Rear Diffuser Style: BKSS Style design adds a sharper and more aggressive lower rear profile
• Finish Options: Carbon fiber, forged carbon fiber, or dry carbon fiber options support different build preferences
• Vehicle Profile: Designed to create a sportier and more motorsport-inspired Porsche 911 992 rear appearance

Package Includes

• One rear diffuser

Note: Professional installation is recommended. Test fitting is recommended before final installation. Final fitment may require minor adjustments depending on the vehicle and selected material option.

Installation

• Designed for installation on the lower rear bumper area
• Professional installation is recommended for proper alignment and secure fitment
• Test fitting is recommended before final mounting
• Surrounding panel gaps and rear bumper alignment should be checked during installation
• Some adjustment may be required during installation for best results
• Additional mounting hardware or adhesive may be required depending on installation preference

Fitment

• 2019-2023 Porsche 911 992 Carrera S
• 2019-2023 Porsche 911 992 Carrera 4
• 2019-2023 Porsche 911 992 Carrera 4S
• 2019-2023 Porsche 911 992 Targa
• 2019-2023 Porsche 911 992 Cabriolet

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.