2019-2022 BMW G20 3 Series Performance Inspired Rear Diffuser

IMPORTANT NOTE FOR CUSTOMERS TRYING TO REPLACE 330 DIFFUSER WITH M340 STYLE: You will need to purchase OEM PART # 51128079607 (rear bracket) as well as the angular exhaust tips in order for the installation to be successful. It is NOT a direct replacement.

Introducing the BMW G20 3 series performance inspired rear diffuser upgrade for your 2019+ G20 BMW 3 series sedans. This diffuser is made from mold injected thermoplastics and will fit any M Sport equipped G20 BMW 3 series (both petrol and diesel versions). That includes the 330i, 330e, along with the diesel variants. This will fit M340i models as well since those are M Sport equipped right out of the factory.

This does NOT fit the standard bumper, you MUST have a factory M Sport package or aftermarket M Sport conversion for this lip to fit properly.

Note: The M Performance style rear diffusers are a matte black finish. Both can be installed as-is, or can be repainted if you so choose to.

If you do not know which trim you have, please refer to this image below to see the difference between the non M Sport trim vs the M Sport trim:

Disclaimer: Although these kits can be installed on your own (DIY) we highly recommend that you utilize an experienced body shop to perform the labor. A professional body shop can be the difference maker between a good or bad result.

As best practice when looking for a shop, you should ask to see results of their previous work. If they claim to be experienced but have no tangible evidence, we would recommend caution when taking your business there. Kiesmotorsports is NOT responsible for poor labor practices.

If you have any questions or concerns, please don't hesitate to contact us. An informed / educated customer is a happy customer.

Your satisfaction is our priority, and we look forward to serving you!