Review on Enhanced Kleinn HK6 Triple Train Horn System for Optimal Air Horn Performance by Josh Cooper

Great addition to my truck. I installed it myself and it took 2 days because I made a modification to the truck to make it fit. They sound amazing but make sure you have room to mount your horns. The horns were larger than I expected so some modifications were required to fit them. You can hear them for several blocks. Very happy with the purchase but would recommend getting it installed by a professional if you are not 100% confident in your skills.