BMW F8X F80 M3 F82 M4 Carbon Fiber PSM Style Diffuser 4pc/set

Transform the rear-end appearance of your BMW F8X with this PSM Style Carbon Fiber Rear Diffuser 4PC Set. Designed to add a bold and aggressive motorsport-inspired look, this rear diffuser set enhances the lower bumper profile while giving the M3 and M4 a sharper performance-focused finish.

This 4-piece rear diffuser set is designed to improve aerodynamic presence and rear-end styling while complementing the factory body lines of the BMW F80 M3 and F82 M4. Its sculpted PSM Style design adds visual depth, track-inspired detail, and a more dynamic rear profile for street, show, or performance builds.

Crafted from high-quality carbon fiber, this rear diffuser set delivers lightweight construction, durable quality, and a premium carbon fiber finish. Designed for BMW F80 M3 and F82 M4 models, each package includes one 4-piece PSM Style carbon fiber rear diffuser set.

Product Specifications

Key Features

• PSM Style carbon fiber rear diffuser set designed for the BMW F80 M3 and F82 M4
• Designed for BMW F8X M3 and M4 models
• Adds a bold and aggressive lower rear-end appearance
• 4-piece diffuser set enhances the rear bumper with a sharper performance-inspired design
• Carbon fiber finish adds a premium motorsport exterior styling upgrade
• Lightweight construction with durable exterior quality
• Designed to improve aerodynamic presence and rear profile styling
• Complements the factory BMW M body lines
• Ideal for street builds, show styling, and track-inspired customization
• Includes one 4-piece carbon fiber rear diffuser set

Configuration Options

• Rear Diffuser Setup: PSM Style 4-piece rear diffuser design enhances the BMW F8X rear profile
• Aerodynamic Styling: Sculpted diffuser shape adds a sharper and more aggressive lower rear appearance
• Exterior Styling: Carbon fiber finish adds a premium motorsport-inspired rear-end detail

Package Includes

• One 4-piece carbon fiber rear diffuser set

Note: Professional installation is recommended. Test fitting is recommended before final installation. This rear diffuser set is designed to enhance the rear profile of the BMW F80 M3 and F82 M4 with a premium PSM Style carbon fiber appearance. Final fitment may require minor adjustments depending on the vehicle condition.

Installation

• Designed for installation on the rear lower bumper area
• Professional installation is recommended for proper alignment and secure fitment
• Test fitting is recommended before final mounting
• Some adjustment may be required during installation for best results
• Additional mounting preparation may be required depending on the vehicle condition

Fitment

• 2015-2018 BMW F80 M3
• 2015-2020 BMW F82 M4

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.