BMW 3-Series (E92/E93) Performance Rear Diffuser (Single Exit)

Fitment: BMW 3-Series E92 (Coupe) & E93 (Convertible) — M-Sport Rear Bumpers Only.

The factory grey plastic diffuser on the E92 and E93 can often look a bit "flat." Our M-Performance Style Rear Diffuser is the perfect solution for owners of the 320i, 325i, 328i, and 330i who want to retain their single-side exhaust setup while adding a much more aggressive, high-end aesthetic.

Finished in a deep, mirror-like Piano Gloss Black, this diffuser creates a sharp contrast against your paintwork and perfectly frames your exhaust tips.

Key Features

• Single-Exit Precision: Specifically molded with a single exhaust cutout (left side) for a perfect, factory-plus look without the need for exhaust modifications.

• Aggressive Aero Fins: Features pronounced vertical fins that give the rear of your Coupe or Convertible a wider, lower, and more "planted" stance.

• Premium Gloss Finish: Skip the dull plastic. This unit comes pre-painted in a multi-stage Gloss Black with a UV-resistant clear coat to prevent fading.

• Direct OEM Replacement: This is a full replacement part that clips directly into your M-Sport bumper using factory mounting points—no "stick-on" covers here.

Compatibility & Specs

Installation Guide

This diffuser is designed for a "plug-and-play" installation, typically taking less than 20 minutes.

1. Remove: Unscrew the factory bolts from the underside of the bumper and gently unclip the original grey insert.

2. Align: Position the new Gloss Black diffuser, ensuring all tabs are lined up with the bumper slots.

3. Secure: Press firmly until all clips "snap" into place and re-install the factory underside bolts for maximum security.

Pro Tip: This is the ideal upgrade if you’ve recently installed larger aftermarket exhaust tips. The sharp lines and black finish make your exhaust setup pop.