Guys with trucks need the best train horn kits to sound super loud on the streets. These top train horn kits come with quality air compressors and the best air tanks money can buy. Lots of the air kit components are furnished by Viair, the best in the industry for your air supplies. I equipped three train horn kits to my F150 in the last decade. I have noticed the kits that last the longest are those not made China. It is worth your time and money to invest in pieces only fabricated in America. That stuff over seas is made to break in a few uses, leaving you hornless. Take your train horn kits and buy these parts to make them louder. Trucks need a loud horn and train horn kits are sometimes equipped with puny wires. These hinder the overall performance and make you sound horrible on the streets. Start off by purchasing a large enough air tank to provide a blast for longer than ten seconds. That means avoid kits that sell you on a one gallon air tank. Your train horns need something bigger and better. Don't go cheap on the compressor either. I recommend at least a 150 PSI air compressor that can refill a 3 gallon tank in five minutes.