G30/G31/G38 5 Series Gloss Black CTM Diffuser

Gloss Black CTM Rear Diffuser for BMW G30/G31/G38 5 Series

Transform the rear appearance of your BMW 5 Series with the CenCal Motorsport Gloss Black CTM Rear Diffuser. Designed for enthusiasts who want a sportier, more dynamic look, this diffuser adds aggressive styling inspired by BMW’s M Performance line while maintaining precise OEM fitment.

The CTM design introduces bold fins and aerodynamic contours that enhance the car’s stance and give it a true motorsport presence.

Crafted from high-quality ABS plastic with a premium gloss black finish, this diffuser offers exceptional durability, lightweight construction, and a deep, reflective shine that complements any factory color or carbon accent. Installation is seamless thanks to OEM-style mounting points—no cutting, drilling, or modification required.

Product Features

Premium Gloss Black Finish

• Deep, mirror-like shine enhances the rear aesthetic and pairs perfectly with OEM or carbon accents

CTM Style Design

• Features aggressive fins and aerodynamic detailing for a bold, track-inspired look

OEM-Level Fitment

• Designed specifically for the G30, G31, and G38 5 Series
• Installs using factory hardware

Durable ABS Construction

• Lightweight yet strong material built for lasting performance

UV-Protected Surface

• Resistant to fading, cracking, and dulling for long-term gloss retention

Direct Bolt-On Installation

• Quick and easy fitment with no modifications required

Compatibility

• BMW G30 5 Series Sedan (2017–2023)
• BMW G31 5 Series Touring (2017–2023)
• BMW G38 5 Series Long Wheelbase (2017–2023)

Note: Fits models equipped with M Sport rear bumper configurations only.

Installation

• Professional installation is highly recommended to ensure perfect alignment, secure mounting, and a flawless OEM-style finish.