2017 - 2021 McLaren 720S Se²NWBII Style Rear Diffuser

Enhance the rear profile of your McLaren 720S with this Se²NWBII Style carbon fiber rear diffuser with LED light. Designed for the P14 chassis, this exterior upgrade adds a sharper and more aggressive lower rear bumper appearance while complementing the vehicle’s sculpted supercar body lines.

The Se²NWBII Style design creates bold visual definition across the rear bumper area and gives the 720S a more dynamic, performance-inspired presence. Its diffuser profile with integrated LED light enhances aerodynamic styling and pairs naturally with compatible front bumpers, side skirts, trunk spoilers, and other exterior upgrades.

Crafted from carbon fiber material, this rear diffuser provides a premium exterior accent with a lightweight performance-focused appearance. Designed for compatible 2017-2021 McLaren 720S models, each package includes one Se²NWBII Style carbon fiber rear diffuser with LED light.

Product Specifications

Key Features

• Se²NWBII Style rear diffuser designed for compatible McLaren 720S models
• Compatible with listed 2017-2021 P14 chassis applications
• Creates a sharper and more aggressive lower rear bumper profile
• Integrated LED light adds a distinctive motorsport-inspired accent
• Adds bold visual definition across the rear bumper area
• Carbon fiber construction with a performance-focused appearance
• Designed to complement compatible front bumpers, side skirts, and trunk spoilers
• Installation manual included for setup reference
• Suitable for street, show, and track-inspired exterior builds
• Includes one Se²NWBII Style carbon fiber rear diffuser with LED light

Package Includes

• One carbon fiber rear diffuser with LED light

Note: Wiring, connectors, control modules, brackets, clips, screws, double-sided tape, automotive adhesive, and additional mounting hardware may not be included unless otherwise specified. Electrical wiring or coding may be required for LED light functionality.

Installation

• Designed for installation along the compatible lower factory rear bumper
• Professional installation is recommended for accurate alignment, secure mounting, and LED light wiring
• Test fit the diffuser before drilling, trimming, applying adhesive, wiring the LED light, or completing final installation
• Clean and degrease all mounting surfaces thoroughly before installation
• Use suitable automotive screws, clips, brackets, or adhesive as required
• Additional mounting hardware, wiring components, or supporting brackets may be necessary
• Minor drilling, trimming, sanding, wiring, or alignment adjustment may be required
• Confirm adequate clearance around the exhaust outlets and surrounding bumper components
• Verify secure attachment, LED light operation, and sufficient ground clearance before driving

Fitment

• 2017-2021 McLaren 720S Coupe P14

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.