2021 CX-5 with Thule Wingbar Evo whistle around 25mph+

[Glee217]

The CX-50 had crazy wind noises with ANY roof rack/bars and they said installing these under the first bar helps: VA54-V3-84E - Aero Kit Crossbars Mazda Parts Connect
See photo 1.

Another solution replace the Thule strips with Rhino Vortex strips but the CX-50 members said it fits oem but I am not sure of Thule: https://www.etrailer.com/Accessories-and-Parts/Rhino-Rack/RRM626.html
See photo 2.

Lastly I can buy a wind deflector for about $106.

 

[Silly Wabbit]

Get a fairing. It should help with reducing wind noise.

 

[Glee217]

Get a fairing. It should help with reducing wind noise.

The aero kit 4 plastics stopped the whistling completely!