BMW 4-Series (F32/F33/F36) Performance Rear Diffuser (Single Exit)

Give your BMW 4 Series a focused, custom look with our Single-Exit Rear Diffuser. Designed for enthusiasts who have converted to a high-flow single-exit exhaust system (such as a 435i/440i style single side or a custom setup), this diffuser eliminates the "empty hole" look of factory dual-exit trims.

Choose between a sleek Gloss Black finish for a stealthy look or our Carbon Fiber Look for that high-end motorsport aesthetic.

Aggressive Rear Styling

Standard diffusers are often too subtle. This M-Performance inspired piece features deeper fins and a more pronounced profile to give your F32 a lower, wider stance from the rear.

• Custom Exhaust Fitment: Specifically molded for single-exit exhaust tips (Left Side).

• Aero-Fin Design: Features sharp, vertical strakes that channel airflow and add visual depth.

• Dual Finish Options: Available in deep Piano Black or a high-definition Carbon Fiber hydro-dip.

Product Features

• OEM-Style Clip-In: Designed to utilize the original mounting points for a straightforward replacement of your factory trim.

• Heat Resistant: Manufactured from high-grade ABS Plastic that withstands exhaust temperatures and resists warping.

• Weather Shielded: Finished with a specialized clear coat to protect against UV rays, road salt, and grime.

• Perfect Proportions: Balanced to match the lines of the M-Sport rear bumper perfectly.

Technical Specifications

Installation Note

This diffuser is a direct swap for the factory M-Sport insert. While it uses the original clip system, we recommend reusing your OEM screws or adding self-tapping screws at the base for maximum security at high speeds.