BMW PSM Style 4PC Carbon Fiber Diffuser - F80 M3 / F82/83 M4

Transform the rear end of your BMW with the PSM Style Carbon Fiber Diffuser, designed for the BMW F80 M3, F82 M4, and F83 M4 (2015–2020). Featuring an aggressive motorsport-inspired design, this diffuser enhances both styling and aerodynamics, giving your M3 or M4 a bold, track-ready presence.

This 4-piece kit includes the center diffuser and two side extensions, along with the middle fin section, offering a complete rear-end upgrade. Constructed from lightweight 2x2 carbon fiber weave, it provides strength and durability while maintaining a premium, OEM+ appearance. The gloss UV-protected clear coat ensures long-lasting shine and resistance to fading, yellowing, or cracking.

Designed for direct replacement of the factory diffuser, installation uses factory mounting points for a precise fit. Professional installation is recommended for best alignment.

Key Features

• PSM-Inspired Styling – aggressive track-ready design.

• 4-Piece Kit – includes center diffuser, fins, and side extensions.

• Aerodynamic Functionality – improves airflow and stability.

• Premium 2x2 Carbon Fiber – lightweight and durable construction.

• Gloss UV-Protected Finish – prevents fading and maintains deep shine.

• Direct Fitment – mounts to OEM points with precision fit.

Specifications

• Material: 2x2 Carbon Fiber Weave

• Finish: Gloss UV-protected clear coat

• Fitment: BMW F80 M3 / F82 M4 / F83 M4 (2015–2020)

• Installation: Direct replacement using OEM mounting points

Installation

• Remove OEM diffuser.

• Align PSM Style diffuser with factory mounting points.

• Secure using supplied hardware or OEM screws.

• Professional installation recommended.