BMW F80 M3 F82 M4 PSM Style Carbon Fiber Rear Diffuser with Under Tray (2015–2020)

Take your rear-end styling to the next level. This PSM Style carbon fiber diffuser with integrated carbon undertray is designed for the 2015–2018 BMW F80 M3 and 2015-2020 F82 M4, delivering an aggressive motorsport-inspired look and functional aero. Crafted from premium carbon fiber with a high-gloss UV coating, this diffuser provides OEM-level fitment with bold fins and extended underbody coverage.

Key Features

• PSM Style Design — Deep fins and extended lines for an aggressive rear profile.
• Carbon Fiber Undertray — Provides additional aero performance and a premium finish.
• Premium Carbon Fiber Build — Lightweight yet durable construction.
• High-Gloss UV Finish — Protects against fading, cracking, and yellowing.
• OEM Fitment — Designed specifically for the F80 M3 & F82 M4 rear bumper.

Styling & Performance Benefits

• Aggressive Motorsport Look — Extended fins and tray create a bold, track-ready appearance.
• Functional Aero Upgrade — Undertray helps manage airflow and reduce turbulence.
• Lightweight Design — Carbon fiber reduces unnecessary weight compared to OEM plastics.
• Cohesive Carbon Styling — Pairs perfectly with carbon lips, spoilers, and splitters.

Installation Notes

• Installation — Direct bolt-on using OEM hardware and supplied brackets.
• Professional Installation Recommended — Ensures precise alignment and secure fitment.

Why Choose Our PSM Style Diffuser with Undertray?

Because your M3 or M4 deserves more than the basics. This diffuser combines aggressive PSM styling with a functional undertray, blending performance-driven aero with premium carbon craftsmanship.