2013 - 2016 Mercedes Benz W117 CLA Sport / CLA45 AMG RZS Style Rear Diffuser

Transform the rear profile of your Mercedes-Benz CLA Sport or CLA45 AMG with this RZS Style carbon fiber rear diffuser. Designed for the C117 chassis, this exterior upgrade adds a more aggressive, track-inspired appearance while complementing the vehicle’s sculpted rear bumper lines.

The pronounced diffuser fins and contoured lower profile create greater visual depth beneath the rear bumper and give the CLA a wider, more purposeful stance. Its performance-inspired design enhances aerodynamic presence and helps create a cleaner visual transition around the lower rear fascia and exhaust outlets.

Available in CFRP and FGCF material options, this rear diffuser combines lightweight construction with premium carbon fiber styling. Designed for compatible 2013-2016 Mercedes-Benz CLA Sport and CLA45 AMG C117 models, each package includes one RZS Style carbon fiber rear diffuser.

Product Specifications

Key Features

• RZS Style rear diffuser designed for compatible Mercedes-Benz CLA models
• Compatible with listed CLA Sport and CLA45 AMG C117 applications
• Creates a more aggressive and track-inspired rear profile
• Adds greater visual depth beneath the factory rear bumper
• Pronounced diffuser contours create a wider and more purposeful appearance
• Enhances aerodynamic presence around the lower rear fascia
• Available in CFRP and FGCF material options
• Lightweight carbon fiber construction with premium exterior styling
• Designed to complement the vehicle’s rear bumper and exhaust layout
• Includes one RZS Style carbon fiber rear diffuser

Configuration Options

• CFRP: Carbon fiber reinforced polymer with a traditional woven carbon fiber appearance
• FGCF: Forged carbon fiber with a distinctive randomized carbon pattern

Package Includes

• One RZS Style carbon fiber rear diffuser

Note: Confirm the vehicle’s model, chassis, production year, factory rear bumper style, exhaust outlet configuration, and parking sensor layout before ordering. Exhaust tips, reflectors, brackets, sensors, and installation hardware are not confirmed as included unless otherwise specified.

Installation

• Designed for installation along the compatible lower rear bumper area
• Professional installation is strongly recommended for proper fit and alignment
• Test fit the diffuser before drilling, trimming, applying adhesive, or completing final installation
• Factory reflectors, brackets, sensors, trim pieces, or hardware may require transfer
• Automotive-grade adhesive, screws, clips, or additional mounting hardware may be required
• Minor trimming, drilling, sanding, or fitment adjustments may be necessary
• Confirm adequate clearance around the exhaust outlets and surrounding bumper components
• Verify parking sensor operation, exhaust clearance, and ground clearance before driving

Fitment

• 2013-2016 Mercedes-Benz CLA Sport C117
• 2013-2016 Mercedes-AMG CLA45 C117
• Verify compatibility with the vehicle’s factory rear bumper and exhaust configuration before ordering

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.