MPC 4 Trumpet Train Air Horn Kit - Fits Almost Any Vehicle: Truck, Car, Jeep, SUV. Includes Four Chrome Trumpets with All-In-One Air System: 110 PSI, 12-Volt Air Compressor, Tank, & More. Complete Kit

I was shocked how much these things go for. I found this one which wasn’t cheap but half of the competitors and it has worked great. The parts are quality and it feels heavy duty. The sound is loud but not leave your ears ringing loud. To me it’s a good pitch, not a low tanker horn , but more of a higher pitched raspy train horn .

The media could not be loaded. This train horn kit is everything I could have wanted in a train horn. It comes with a compressor & tank plus the horns and wiring, air line, and miscellaneous crimp connectors making it a complete kit that just needs to be dropped in a car or truck. After opening the box I could tell the components were high quality off the shelf components assembled into a kit paired with very detailed instructions for wiring everything together. The operation of everything is so well thought out that all you have to do is wire up the compressor and the tank will automatically be refilled anytime it falls below a threshold ensuring that the horns will be ready immediately upon the press of a switch. The horn's sound is a bit higher pitched and not quite as loud as other train horns, but for the price this setup simply can't be beat. I've been using the horn for almost a year now and every time I press the button it gets results. No more getting cut off by aggressive drivers because this will get their attention and scare them back into their lane. The attached video really doesn't do it justice, this train horn kit is surprisingly loud.----Pros----*Very high quality*Awesome price*Includes everything necessary*Loud, will definitely get results*Detailed instructions*Reliable----Cons----*Wiring & air line may not be long enough if routing under trim panels a long distance from the battery and horns*Not as loud as some alternatives

I love these horns! It took me a while to find a place to put them on my 14 Super-Duty as the engine completely fills under the hood, finally put them inside the front bumper and have had zero problems with the trumpets from day one. I put the compressor in the bed under my tonneau cover and have had zero problems with that since install too. The only issue I had with this entire installation was that the included airline was not long enough to route from where I mounted everything (an additional 10 feet would be nice guys!). I ended up buying some airline which was rated to 120 psi from home depot but I didn't take into account the summer temps under my tonneau cover here in Houston! Needless to say the temp heated the compressed air to well above 120 psi and of course the airline I picked up at home depot blew out. I ended up picking up some truck airbrake line rated to over 200 psi (any O'reilly's has it and it's CHEAP) and installing that and have not had one problem since. I wired the trigger direct to the steering wheel horns and the power through the upfitter switches inside. Worked like a champ! For what you get with these compared to what you pay they are a great deal and like I said they work AWESOME! Get behind some jackwagon texting on their phone at a red light and continuing to text after the light turns green, hit em with the "Train Horn" and watch what happens, well worth the price of admission!!!!!!

Easy set up but I will recommend doing a dry fit off the vehicle to check for function and leaks. None found on this unit but the previous one of another brand was garbage and the dry fit saved me a lot of aggregation. Biggest challenge was finding suitable mounting locations for the trumpets and tank but after some modifications to the spare battery tray in an '18 Silverado, went in rather easy. Outside of that I took other users feedback and purchased a Kleinn pressure switch and solenoid for the trumpets and made sure all the fittings were tight and sealed correctly. I ran compressor off a relay as well as the trumpets off a relay for two separate switches. One for on/off power to the compressor and one to actuate the solenoid for the horn blast. A little extra planning made the end result worth it.The only reason for 4 stars is for tone quality. While extremely loud and perfect function, the tone is more to the upper side of mid range. Doesn't exactly have the low tones I was looking for but down the road may just buy a Kleinn trumpet set and leave everything else or change the bells and eliminate the high notes and have all low tones (kept the last defective unit as seller didn't want it back, again a different brand but the trumpets are just fine).

A very loud horn, probably 3x as loud as the factory OEM horn on my 2020 Tacoma! Installation was simple, but time consuming (finding the right mounting spot, running the electrical and airline properly through the firewall, etc... I like a professional look). Easily a two-day, do-it-yourself project, if you are as particular as I am about a clean and OEM-looking install.Just a thought... I purchased the chrome bugles rather than black, and ended up painting them black anyway. Chrome was very visible through the front grill (where I chose to mount them) and I wanted them mostly unseen.I added rubber stick-on feet to the legs of the compressor, and it greatly reduced the in-cab noise of the compressor pump when it runs (my "perfect place" for the compressor was the storage area behind my rear seats).I needed to rotate the position of the airline-out fitting on top of the compressor, and broke it trying to remove it. MPC tech-support had a new fitting to me, free-of-charge and free shipping, in just three days!As an added touch, I purchased an OEM Reproduction horn button to install in one of the blanks, in my Tacoma switch panel.Great purchase! Satisfied customer here!