After installing a Rhino-Rack Vortex roof rack our customer was hearing a loud whistling sound anytime he went over 30km/hr. Because of the aerodynamic design, this roof rack should be very quiet even when you reach higher speeds. There are a few common fixes for this issue:

1. Ensure that all your measuring strips are inserted on both sides of the underside of the bars. This is an important step and if skipped it will cause the rack to be noisy.
    
2. There is a rubber strip that also must be inserted on the top side of the bar. If you can't locate the strips when first opening your Rhino-Rack roof rack components be sure to take the crossbars and give them a good shake. The strips are generally packed inside the bar for safe keeping and will slide out with a little effort. If you need a replacement rubber strip they can be found in our crossbar replacement parts section under part# M626.
    
3. The Rhino-Rack wind fairing deflects air around your load (rack and gear) which keeps it quiet. The wind fairing is universally fitting which means that it will easily attach to cross bars from most major roof rack brands.
    

A correctly installed Rhino-Rack Vortex roof rack with additional wind fairing. 

If the first 2 options have not solved your wind noise problem we recommend you contact us so we can help troubleshoot the issue further with Rhino-Rack before purchasing a wind fairing. Your Vortex roof rack should be quiet on it's own and a fairing should mainly be used to help reduce noise once you're carrying gear. 
 

Our team is ready to help with any questions or troubleshooting on any roof rack or outdoor accessory products - info@hitchweb.com or 1-800-300-4067