Kleinn Air Horns GMTRK-1 Bolt-On Train Horn

Absolutely the best thing I have added to any vehicle I have ever owned! Incredibly loud and yet compact setup. It was super difficult to install though. I changed a few things too. I had to use longer bolts so the air tank would set up a bit higher in order to reach the drain. I added an air outlet near the tank so I can use it if I need to air up tires or anything else. I also replaced the cheap plastic button for a 19mm led one that I put in place of a 12 volt accessory outlet so the button is now hidden when the cover is shut. Well built product and working excellent after almost two years of various different climates, highly recommend it!Also the modifications I made only cost me around $20

We’ll see how this goes. But the compressor box and the air tank boxes were already opened and the factory packing was disturbed. Ita missing the instructions as well. I’m hopeful all the pieces such as screws and connectors are here. Would return but this is the only weekend I can do this install on my truck.

Still haven’t installed this because the 1st one I ordered, the large horn was severely cracked. I ordered a replacement (returned the one I received). A few days later I received the new one and this time the small horn was completely broken.You would think for $500 the entire horn assembly would be metal but it is not.I would also like to note that both boxes were undamaged when they arrived.2021 Update:For the 2nd time the solenoids failed. I am scrapping the horns, and solenoids, and mounting a new horn, and solenoid.This is kit is worth it just for the tank and compressor that fits in the unused battery spot. However the horns, and solenoid are not up to par.

Super loud horns that fit the exact truck perfectly. Installation is time consuming but not real tough it you know basic electrical and hand tools. All in all it took me roughly 3.5 hours to install the entire system and a good chunk of that was running the wires through the firewall for the switch.

I absolutely love this horn. It is super loud and very well built BUT ...... when everybody says it’s easy to install ... it’s not that easy. I recently installed this kit on my 2018 Silverado and it took me About 5-6 hours. The instructions that were supplied in the kit were pretty much useless. I was able to watch a couple you tube videos on some earlier models for tips and better explanation. Definitely pre build the entire horn assembly, solenoids and air connections before mounting. The horn does not mount the way it shows in the instructions and video for a 2018. They tell to face the horn toward the passenger side, No.. The horns have to face the driver side to fit right. Mounting it the way it shows in the book will not work on a 2018, part of the bumper hits the horn. Please pre build the entire compressor before installing it. Don’t mount the plate first and then try mounting the compressor and tank, it will not work.... you can’t get your hands down there to mount it. build the whole thing first and then mount it. I was only able to get 3 screws in because it was really tight to fit my hands below but I made it work with 3 screws and it’s tight enough. The most difficult part for me was mounting the compressor but other then that, once everything is mounted just run your air lines and 12v supply and your good to go. If you don’t do this vehicle stuff on the regular, this is a difficult installation but well worth it. I recommend this horn kit to anybody but be prepared for a challenge.

Easy to install. Very loud air horn and has help avoid a few fender benders already.

Horns a very loud. Plate that holds tank and compressor does not line up well with holes in secondary battery location.UPDATE:I've had installed on my truck for nine months now and compressor is locked up and I'm on my second pressure switch.

My photo is the wiring schematic I used in wiring this up. The instructions are not as clear as they should be. Watch a youtube video before hand to help you see where things go. I rate this about 4 1/2 stars. First the 1/2-28 threaded bolts they provide in the kit to bolt down the compressor and tank in the battery tray of your vehicle are too short. Purchase 3" bolts. 2ND problem I had was one of the horns had an air leak and I needed to take it apart and re-tape the threads with Teflon tape. It's fine now. The installation will take you time. 3-6 afternoons spent putting this in. I added a T fitting with a short piece of rubber air line then attached a small ball valve to drain the tank underneath. I also added a pressure gauge on that same T fitting so I know it inflates the tank to 140 PSI. I also added an on off switch coming off of the ignition line in case of a air leak the compressor won't be running all the time going down the road. Also make sure your in tank line is clear. Breath thru it. If you can't breath thru it the compressor will take several minutes to fill with air. Final thought I used a lighter and warmed up the plastic air tubing so I could press them onto the fittings. If you don't do that I don't think you will get the lines on. It's a good kit but it goes together very slowly. Every vehicle will have an obstruction or 3 to deal with or an older vehicle will have rust slowing down the assembly. I recommend the kit, but it won't go together as easy as advertised.Edit to add 7 months after install one horn died. I purchased a replacement and didn't bother with contacting kleinn.