THE LOUDEST TRAIN HORN KITS EVER MADE! Train horns have always been what we do best. We wanted to bring the real sound of a locomotive right to your vehicle and that's exactly what we do. We deliver the loudest train horn kits you can buy with the best service possible. Our train horn kits are simply ridiculous! We sell the same horns used on real trains and trust us, they are the loudest train horns money can buy.