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Purchase Mirror Wind Diffuser - 991, 981, & 718
  • Mirror Wind Diffuser - 991, 981, & 718 SKU: PK9X1MIRROR

    ★★★★★ ★★★★★ 4.50/5 Stars. (30 Reviews)
  • MSRP $94.68 $89.95


You know that sound that happens when your window is down at speed that makes it feel like your head is going to implode? That’s called wind buffeting. It happens when you’re moving fast, and it’s quite the issue on the newest generation of Porsche Boxster, Cayman, and 911 Carrera models.

Made by AWE Tuning, this diffuser boasts an unobtrusive yet elegant design. Crafted from UV stabilized injection-molded plastic, it complements Porsche styling without calling unwanted attention. Once installed, driving with the windows open will be more comfortable and more quiet. A simple solution to a common gripe among Porsche owners.


  • Simple, quick installation for late production 981, 991, and 718 models for earlier production please see install guide first.
  • The elegant solution for Porsche 981, 991, & 718 wind buffeting
  • UV stabilized injection-molded plastic for the perfect OE-style look
  • Combats buffeting, both on the track and on the street
  • Allows for "single window" down driving without buffeting
  • Perfect OE-like fitment
  • Fits Coupe, Cabriolet and Targa models
  • Includes driver’s side and passenger side fitment

  • Fits all 2013-2019 911 Carrera models (including Turbo & GT3), and 2013-2021 Boxster & Cayman models.

    Currently Viewing Reviews with a rating of 3. Click here to reset.
    ★★★★★ ★★★★★
    4.50/5 Stars out of 30 Reviews
    Works - but quality lacking
    (North Carolina) | March 19th, 2021
    Ok - install was ok - not that complex - but only 2 small screws - easily will drop in the door panel. They are very thin plastic and not sure how they are going to hold up. They do lower the impact of the reverb of the air at higher speeds. For almost 100 these are overpriced.
    Not helpful if you have a cabriolet
    (Dallas) | January 14th, 2021
    I was hoping these would cut back on the buffeting with the top down, but windows up. It did not seem to make much of a difference. The installation was simple.
    AWE wind diffuser
    (Bayville, NY) | September 5th, 2020
    Pretty straightforward easy installation and they do lessen the wind buffeting at speed...but way over priced for what they are. Should be no more than $50
    Ok but not great
    (Calgary) | May 30th, 2020
    Plastic feels flimsy compared to OEM. Fit was good on driver side, but there is a bigger gap on the passenger side. Installation is very easy. It does reduce buffeting at highway speeds. But, when the widows are up I can now hear a whistling noise. It's not loud but still audible. TBH I'm not sure I'll keep these on or not.
    Nice looking pieces, but...
    (Jacksonville, Florida) | July 11th, 2016
    I ordered this kit hoping my 2012 1/2 991 would be an easy job. When I downloaded the instructions, I discovered that there are Early and Later 991's and that one is easy, the other is much harder, with no way to know until you start taking it apart. I took my car to my dealer and they pulled the inside wing cover as I watched, and it was clear that my car would need to have the door panels completely removed to install these winglets. They estimated $200... per do the work. So I boxed it up and took it home. Sadly for me it was more than 3 weeks from my order date to the dealer visit so I cannot return it (20 day limit). If you have an "early" 991 you are in for a lot of extra expense unless you are comfortable dealing with airbags, and have all the required tools to disassemble the door panels, and the skill to safely put it all back together.

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    Mirror Wind Diffuser - 991, 981, & 718
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