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Purchase Window Triangle Trim - Wind Diffuser
  • Window Triangle Trim - Wind Diffuser SKU: PK9X1MIRROR

    ★★★★★ ★★★★★ 4.40/5 Stars. (15 Reviews)
  • MSRP $83.16 $79.95


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 Porsche Boxster, Cayman, and 911 Carrera models (including Turbo & GT3).

    ★★★★★ ★★★★★
    4.40/5 Stars out of 15 Reviews
    Pages 1   2
    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.
    Worth it
    (Washington) | May 22nd, 2020
    A little pricey for two pieces of plastic but they work. Took just a small amount of finish work to get them to fit perfectly. Had to remove the door panel to install but not difficult and worth the extra effort.
    AWE Wind Diffuser
    (california) | April 4th, 2020
    I received the items in a reasonable amount of time and was accurately filled. Thanks Suncoast. Installation was straight forward, however the company should have included the interior trim tool which would be inexpensive. In the instructions it stated there maybe a gap once installed due to different applications, however the gap was very uneven and varied from side to side. Because of this it doesn't look like an OEM piece. I haven't been able to test its effectiveness but assume it'll work just fine based on the previous reviews.
    window down adventures
    (Denton, TX) | May 10th, 2019
    Excellent product. reduces the sound buffer tremendously almost to zero for my 2014 Cayman S. keep in mind as mentioned 20013-2014 models is not a DUI unless you are a pro, got it done from my indy shop.
    (Texas) | April 27th, 2018
    It took me awhile, but finally installed them. Wow, what a difference. Was just driving on the freeway with the windows down, it's awesome.
    Just buy it
    (Phoenix, AZ, USA) | March 5th, 2018
    after experiencing the wind baffling when driving at 45-55mph with the driver side window down, the wind diffuser now has a smooth flow of are around the drivers window up well pass 55mph. I can now drive with the window down and enjoy the weather and sounds. Looks like like factory and installed in less than 10 min with basic tools.
    Great Upgrade
    (Annapolis, MD) | November 28th, 2017
    Great upgrade! Installed on my GT4 in about 10 minutes for each side. Can drive at 75 with passenger window up and no buffeting. Significantly reduced buffeting on the track. I damage the passenger side when installing. Called the manufacturer, sent them a picture and two days later a new one was delivered. Great service!
    My fault, connectors missed
    (Seoul, Korea) | August 13th, 2017
    I purchased a mirror on June 22, 2017. I tried to install it recently, but I found out that the connectors (4 connectors for connecting to 911) were missing. If you don't mind, can I buy only four connectors in the picture?
    A useful upgrade, but installation can be tricky
    (Boston) | July 6th, 2017
    These work well. But, depending on the model/build of the Boxster you have, they can be tricky to install. Suncoast supplies directions, but I had to have mine installed by by my mechanic.
    Wind Buffeting Decreasede
    (indio, CA) | June 21st, 2017
    Installed this item two days ago. I was a little hesitant at first as I am not the most mechanical inclined individual, but I can follow directions. Twenty minutes and was done. Looks great and works even better. Love driving with the windows down and hear the tunes.

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    Window Triangle Trim - Wind Diffuser
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