Lexus RC F LX Style Carbon Fiber Rear Diffuser 2015-2018

Upgrade the rear-end styling of your 2015–2018 Lexus RC F with this LX style carbon fiber rear diffuser. Designed to complement the factory rear bumper, this upgrade enhances the vehicle’s lower profile with a more aggressive and performance-oriented appearance while maintaining clean OEM-style integration.

This rear diffuser is precision-engineered to align with the factory bumper contours, providing a seamless fit and refined finish. The LX-inspired design introduces sharper fins and improved visual depth, giving the RC F a more dynamic and track-inspired rear stance.

Constructed from high-quality carbon fiber materials, the diffuser offers lightweight durability, structural strength, and a premium finish. Available in multiple carbon fiber variations, this upgrade is ideal for enthusiasts seeking enhanced rear styling for both daily driving and show builds.

Product Specifications

Key Features

• Designed for 2015–2018 Lexus RC F models
• LX style rear diffuser enhances aggressive rear styling
• Precision-molded for OEM-like fitment
• Carbon fiber construction for lightweight strength and durability
• Consistent weave with premium finish quality
• Available in CFRP and FGCF material options
• Enhances rear bumper depth and aerodynamic appearance
• Direct replacement installation
• No major modification required
• Suitable for daily driving and show builds

Configuration Options

• CFRP – Standard carbon fiber weave with glossy finish
• FGCF – Forged carbon fiber pattern for a unique appearance

Package Includes

• Rear diffuser

Note: Products marked as PRE-ORDER require production prior to shipping. Professional installation is recommended to ensure proper alignment and secure mounting.

Installation

• Direct replacement installation
• Uses factory mounting points
• No cutting required
• No major modification required
• Professional installation recommended

Fitment

• 2015–2018 Lexus RC F

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.