This is a complete kit that will eliminate the whistle from your 50" LED Bar
These whistle eliminators simply slide over the bottom (2) fins on the back heat synch of the LED Bar to eliminate the whistle
WARNING: Cancer and/or Reproductive Harm - www.P65Warnings.ca.gov/
Some of the automotive and motorcycle parts listed on this site have been known to the State of California to cause cancer or reproductive toxicity.