The Rhino-Rack Vortex Generating Strip is a piece of bar rubber designed to reduce wind noise as well as giving your roof racks additional padding and styling. Included are 8 strips. They are designed to fit Rhino's Vortex bars, and will also fit Thule's original oval aero bars and WingBars.

To install, simply slide the rubber strip into the T-track channel, or push it down from above with your thumbs. 

Part number: VA-VGS8