Auxbeam 52 inch Light Bar Whistle Silencer

thingiverse

I installed an Auxbeam 52" RGB LED Light Bar on my 2012 Toyota Tundra and the fins at the back created a really annoying whistling sound. I searched online and discovered companies selling back clips for $9 each, but I needed eight to fit my light bar, so I decided to print my own instead. I found a file on Thingiverse created by Offroad_Rob, resized it in freeCAD to match my Auxbeam bar's dimensions. The dimensions are as follows: the front face of the bar is 3 inches tall and the distance from the front face of the bar to the back fin is 3.75 inches. I scaled down the clips slightly so they fit snugly. These custom clips might work for other bars with similar measurements, since most lightbars come from the same Chinese factory. I spaced out the clips every three to four inches apart and sealed them in place with a thick bead of black silicone, which effectively eliminated almost all wind noise.