• MK7 MK7.5 GTI Wind diffuser buffeting reducer windows down 2015 2016 2017 2018 2019 2020
  • MK7 MK7.5 GTI Wind diffuser buffeting reducer windows down 2015 2016 2017 2018 2019 2020
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Wind buffeting diffuser for MK7 & MK7.5 Golf, GTI, R

Wind buffeting diffuser for MK7 & MK7.5 Golf, GTI, R

Part# : GP-7G-WBD
$45.00
$45.00
Sale Sold out
Shipping calculated at checkout.

Fast Shipping & FAQ

  • When will my order ship?
    • Refer to the cart estimates for the most accurate ship times. Add your products, provide shipping info and review the options we have for the specific parts. Some items are made to order, others are stocked so the order will be split based on availability. 
    • Some listings also show a lead time in the description if the part is made to order. 
    • Orders placed on Friday will ship on Monday or Tuesday. Mondays are our busiest shipping days, so weekend orders may not ship until Tuesday - IF the product is in stock. 
    • DHL Orders placed after 10am EST on Friday will ship on Monday.
    • Tracking will be emailed as soon as we create the label. 
    • If you want to check availability and get an estimated ship date, contact us before ordering: support@cjmind.com. 
    • Do your products come with a warranty?
      • Yes! We offer a manufacturer warranty on all of our products, the time period ranges by product line, so feel free to contact us for replacement parts. Please be sure to include which pieces you need.
    • Do you ship international? What are the fees?
      • We do ship direct to some countries outside the US.
      • All international shipments are sent DDU and with signature required. You will be responsible for all duties and customs fees and arranging for delivery. 
      • The customer is responsible for all import duties and customs fees. They are not built into the product cost. 

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        Returns

        Warranty:

        For part replacements or destroyed products please contact us with the pieces you need! The warranty covers manufacturer defects and failed components for 1 year from delivery date.

        Read the return & cancel order policy here. 

        Install Info

        Install sheets can be found on CJMinstall.com. We are in the process of digitizing all sheets. If you can't find the copy you need, please email us! support@cjmind.com

          If you found this product, you likely already know what it is for. 

          This part significantly reduces wind buffeting noise at highway speeds with the windows open. This wind noise or wind buffeting is also known as Helmholtz resonance. 

          Wind buffeting is particularly bad on 2 door vehicles, but anyone in a 4 door will also notice the helicopter-like noise in your inner ear when you open just the front windows. 

          This part is most effective from 0-80mph. Above 80mph the buffeting noise will begin to overcome this parts ability to reduce the resonance. Cross winds can also reduce their effectiveness. These work best when they are diverting air flow from vehicle movement.

          This is designed for USDM models. It may not fit international models outside of North America

          IMPORTANT NOTE: As with any aerodynamic part, other parts upstream on the exterior of the car can effect this part’s function. Splitters, endplates, tire spats, hood vents, fender vents can all change airflow feeding into this part. Our testing was done on a car with our V3 aero kit, fender and hood vents. Your results may vary. 

          Our serrated design is more effective than the small curved profiles you commonly see on Supra's, and Porsche's to combat this noise. Those options do reduce wind noise at some speeds, however they often cause noise at lower speeds. Their effectiveness tapers off above 70mph in most cases (Go read product reviews if you don't believe it). 

          Do these really work!? - don't take our word for it, read the reviews on our website, or check out some video reviews:

          Made of 3D printed satin black UV resistant ABS composite plastic. Adheres to the front triangle window with included 3M VHB tape. The inside edge is contoured to match the curve of the window, and a pocket recessed into the surface for the VHB tape. The side mirrors can still be folded with this installed. 

          Why 3d print this? Because it keeps this part affordable for everyone. Most people don't want to spend hundreds of dollars on milled plastic or carbon versions for a part this small.

          You can lightly sand and paint this plastic if you prefer gloss black finish. 

          Each Order Includes:

          • 1 Driver Side Reducer
          • 1 Passenger side Reducer
          • Pre-applied 3M VHB Tape
          • Alcohol Swab to clean the window 

          Want to further reduce wind noise on track at higher speeds? Add some vortex generators to the A-pillar from our friends at Yeti Race Craft. These compliment our diffusers function and will also reduce drag at higher speeds. 

           

          **Using this part in conjunction with window wind deflectors will create noise at lower speeds.**

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