2018 - 2024 Rolls-Royce Cullinan BKSS Style Carbon Fiber Rear Lip Diffuser

Give your Rolls-Royce Cullinan a bold, performance-inspired rear view with this BKSS Style Carbon Fiber Rear Lip Diffuser. Designed to improve both styling and aerodynamic presence, this rear diffuser enhances the sporty character of the Cullinan while maintaining its refined luxury appeal.

Made from CFRP, FGCF, GFGCF, or DryCF material options, this rear diffuser delivers durable construction, lightweight performance, and a premium carbon fiber finish. The included pair of exhaust tips completes the rear-end transformation with a more aggressive and polished appearance.

Engineered for 2018-2024 Rolls-Royce Cullinan models, this rear lip diffuser is ideal for owners seeking a clean, high-end carbon fiber upgrade with enhanced rear styling. An installation manual is included to support a smooth and secure fit.

Product Specifications

Key Features

• Designed for 2018-2024 Rolls-Royce Cullinan models
• BKSS Style rear lip diffuser for a bold performance-inspired rear view
• Enhances rear-end styling while maintaining the Cullinan’s refined elegance
• Supports improved aerodynamic styling and stronger road presence
• Made from CFRP, FGCF, GFGCF, or DryCF material options
• Lightweight construction with durable performance and premium finish quality
• Includes a pair of exhaust tips for a complete rear-end transformation
• Adds an aggressive carbon fiber detail to the rear bumper area
• Installation manual included for fitting support

Configuration Options

• CFRP
• FGCF
• GFGCF
• DryCF
• BKSS Style rear lip diffuser design
• Rear diffuser and exhaust tip package layout

Package Includes

• One carbon fiber rear diffuser
• One pair of exhaust tips
• Installation manual

Note: Professional installation is recommended to ensure proper fitment, rear diffuser alignment, exhaust tip positioning, bumper clearance, mounting security, and finish.

Installation

• Inspect the rear bumper, diffuser mounting area, and exhaust tip area before installation
• Review the included installation manual before fitting the components
• Clean all mounting surfaces thoroughly before installation
• Test fit the rear diffuser and exhaust tips before final installation
• Verify alignment with the rear bumper, lower fascia, exhaust outlets, and surrounding body lines
• Confirm mounting security, diffuser clearance, and exhaust tip positioning before final adjustment
• Professional installation recommended for best fitment and finish

Fitment

• 2018-2024 Rolls-Royce Cullinan

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.