2011 - 2017 McLaren MP4 12C/650s BKSS Style Rear Diffuser

Complete the aggressive rear styling of your McLaren MP4-12C or 650S with this BKSS Style carbon fiber rear diffuser. Designed to add bold aesthetics and aerodynamic edge, this exterior upgrade enhances the lower rear profile with a race-ready motorsport appearance.

The BKSS Style rear diffuser design adds visual depth, airflow presence, and a sharper performance-focused finish to the rear bumper area. Its sculpted carbon fiber construction integrates with the vehicle’s rear-end design, giving the MP4-12C or 650S a more planted and track-inspired look.

Crafted from premium CFRP, FGCF, or DryCF material options, this rear diffuser offers lightweight strength, durable construction, and a sleek carbon fiber finish. Designed for 2011-2017 McLaren MP4-12C and 650S models, each package includes one carbon fiber rear diffuser.

Product Specifications

Key Features

• BKSS Style carbon fiber rear diffuser designed for the McLaren MP4-12C and 650S
• Designed for 2011-2017 McLaren MP4-12C and 650S models
• Adds a bold, aggressive, and race-ready rear-end appearance
• Enhances the lower rear bumper area with a sculpted diffuser design
• Available in CFRP, FGCF, or DryCF material options
• Lightweight carbon fiber construction provides durable performance styling appeal
• Adds airflow presence and downforce-inspired rear styling
• Complements the McLaren factory rear body lines
• Ideal for track-inspired builds, street styling, and carbon fiber exterior customization
• Includes one carbon fiber rear diffuser

Configuration Options

• CFRP: Carbon fiber reinforced polymer option with a premium carbon fiber appearance
• FGCF: Fiberglass carbon fiber option for carbon styling with reinforced structure
• DryCF: Dry carbon fiber option for a lightweight, high-performance finish
• Rear Diffuser Setup: BKSS Style diffuser enhances the McLaren lower rear bumper profile
• Vehicle Application: Designed for McLaren MP4-12C and 650S models within the listed fitment range

Package Includes

• One carbon fiber 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 installation method.

Installation

• Designed for installation on the rear lower bumper area
• Professional installation is recommended for proper alignment and secure fitment
• Test fitting is recommended before final mounting
• Transfer or adjustment of OEM components may be required during installation
• Some adjustment may be required during installation for best results

Fitment

• 2011-2014 McLaren MP4-12C
• 2014-2017 McLaren 650S

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.