If you are tired of your wimpy little horn and you are ready to step it up a notch, get yourself a train horn. With an on board air system you can have unlimited enjoyment with a horn as loud as a train or semi truck. With vehicle specific kits that bolt straight on to your car or truck, its practically effortless. Or if you feel like you want to go a little louder, Kleinn offers other kits that really bump up the volume. But if you still have any doubts about investing in a train horn, just go watch a video of someone cruising around town with their horn blaring and see if that alone sells you.