2018-2022 BMW 8 Series (G14/G15/G16) IMP Carbon Fiber Rear Diffuser

Transform the rear profile of your BMW 8 Series with this IMP carbon fiber rear diffuser featuring an integrated LED light. Designed to add a bold, motorsport-inspired appearance, this rear-end upgrade creates a lower and more aggressive stance while complementing the vehicle’s refined factory body lines.

The sculpted diffuser design adds visual depth and definition beneath the rear bumper while enhancing the vehicle’s aerodynamic presence. Its integrated LED light provides a distinctive performance-inspired detail that gives the G14 Convertible, G15 Coupe, and G16 Gran Coupe a more dynamic rear appearance.

Crafted from premium carbon fiber, this rear diffuser combines lightweight construction, durable exterior performance, and a high-end woven finish. Designed for 2018-2022 BMW 8 Series 840 and 850 models, each package includes one carbon fiber rear diffuser with an integrated LED light.

Product Specifications

Key Features

• IMP carbon fiber rear diffuser designed for the BMW 8 Series
• Designed for 2018-2022 BMW G14, G15, and G16 models
• Compatible with G14 Convertible, G15 Coupe, and G16 Gran Coupe body styles
• Creates a lower and more aggressive rear-end appearance
• Features an integrated LED light for a distinctive performance-inspired detail
• Adds visual depth and definition beneath the rear bumper
• Enhances aerodynamic presence and rear-profile styling
• Premium carbon fiber construction with lightweight strength
• Complements the refined factory lines of the BMW 8 Series
• Includes one carbon fiber rear diffuser with LED light

Configuration Options

• G14 Convertible: Designed to complement the rear bumper profile of the BMW 8 Series Convertible
• G15 Coupe: Designed to complement the rear bumper profile of the BMW 8 Series Coupe
• G16 Gran Coupe: Designed to complement the rear bumper profile of the BMW 8 Series Gran Coupe
• LED Configuration: Integrated rear LED light adds a distinctive motorsport-inspired appearance

Package Includes

• One IMP carbon fiber rear diffuser
• One integrated LED light

Note: Professional installation is recommended. Test fitting is required before final installation to confirm proper alignment with the rear lower bumper. The integrated LED light requires electrical wiring by a qualified installer. Verify the vehicle’s chassis, body style, model, rear bumper configuration, exhaust layout, and sensor placement before ordering.

Installation

• Designed for installation on the rear lower bumper area
• Professional installation is recommended for proper alignment and secure fitment
• Test fit the rear diffuser before completing the final mounting process
• Clean and prepare all mounting surfaces before installation
• Electrical wiring is required for the integrated LED light
• Factory hardware, additional mounting hardware, adhesive, drilling, or minor adjustments may be required
• Confirm proper clearance around the exhaust outlets, sensors, and surrounding bumper components
• Test the LED light and all nearby vehicle functions before completing installation

Fitment

• 2018-2022 BMW 840i Convertible G14
• 2018-2022 BMW 840i xDrive Convertible G14
• 2018-2022 BMW M850i xDrive Convertible G14
• 2018-2022 BMW 840i Coupe G15
• 2018-2022 BMW 840i xDrive Coupe G15
• 2018-2022 BMW M850i xDrive Coupe G15
• 2018-2022 BMW 840i Gran Coupe G16
• 2018-2022 BMW 840i xDrive Gran Coupe G16
• 2018-2022 BMW M850i xDrive Gran Coupe G16

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.