Mercedes Benz S Class W222 IA Style Carbon Fiber Rear Diffuser 2018-2020

Enhance the rear-end styling and aerodynamic performance of your 2018-2020 Mercedes Benz W222 S Class facelift sedan with this IA style carbon fiber rear diffuser. Designed for AMG Line models, this upgrade adds a sharper and more aggressive lower rear profile while maintaining clean OEM-style integration.

Precision engineered for seamless fitment, this rear diffuser is crafted to align with the factory rear bumper and exhaust layout of the S450 and S560 AMG Line. The sculpted design improves airflow underneath the vehicle while enhancing rear stability and visual depth.

Constructed using advanced carbon fiber materials, this diffuser offers lightweight durability, excellent rigidity, and premium finish quality. Available in multiple carbon fiber configurations, it is ideal for drivers seeking a refined OEM+ upgrade for both luxury and performance styling.

Product Specifications

Key Features

• Designed for 2018-2020 Mercedes Benz W222 facelift S450 and S560 AMG Line
• IA style rear diffuser for enhanced aggressive styling
• Constructed from high-quality carbon fiber material options
• Available in CFRP, FGCF, and dry carbon fiber configurations
• Improves rear aerodynamics and airflow management
• Enhances lower rear bumper definition and performance appearance
• Precision engineered for OEM-style fitment and seamless integration
• Maintains factory luxury design with added performance styling
• Compatible with AMG Line rear bumper configuration
• Suitable for daily driving, show builds, and performance upgrades

Configuration Options

• CFRP – Carbon fiber reinforced polymer for strength and durability
• FGCF – Hybrid composite with carbon fiber styling appearance
• Dry Carbon Fiber – Premium lightweight carbon fiber with high-end finish

Package Includes

• Rear diffuser

Note: Designed specifically for AMG Line models. Professional installation is recommended to ensure proper alignment and finish quality.

Installation

• Direct fitment to factory rear bumper
• Uses factory mounting points where applicable
• May require additional hardware or adjustments depending on setup
• Professional installation recommended
• Test fitting required before final installation

Fitment

• 2018-2020 Mercedes Benz W222 S450 AMG Line
• 2018-2020 Mercedes Benz W222 S560 AMG Line

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.