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MK7 / 7.5 Golf, GTI, R - Wind buffeting diffuser

MK7 / 7.5 Golf, GTI, R - Wind buffeting diffuser


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Regular price $42.00 USD
Regular price Sale price $42.00 USD
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If you found this product, you likely already know what it is for.

This part significantly reduces wind buffeting noise at highway speeds. 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.

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.**

Install Info

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

Shipping info:

  • Orders placed before 12pm EST typically ship the next business day if the product is in stock. Orders placed after 12pm EST will ship 48 hours later. 
  • Orders placed after 10 EST on Friday will ship on Monday. 
  • Tracking will be emailed as soon as we create the label. 
  • US shipping is free for orders over $75
  • Shipping to Canada is free on orders over $150. (Diffusers, skirts & splitters excluded) 
  • All international shipments are sent DDU and with signature required. You will be responsible for all duties and customs fees and arranging for delivery. 

Shipping & FAQ

  • When will my order ship?
    • Orders placed before 12pm EST typically ship the next business day if the product is in stock. Orders placed after 12pm EST will ship 48 hours later. 
    • Orders placed after 10am EST on Friday will ship on Monday. 
    • DHL Orders placed after 10am EST on Friday will ship on Monday.
    • Tracking will be emailed as soon as we create the label. 
    • 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 to some countries. If you cannot get a quote at checkout, We do have a dealer who does ship international. Please contact Brett at -
      • The customer is responsible for all import duties and customs fees. They are not built into the product cost. 
    • Is this 3D printed?
      • Yes, All of our pods are 3d printed to allow for continuous improvement. We don't make injection molds because they are far to expensive for the custom fit products we make.

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