I have 2015 F-250. This is the perfect kit if you want the train horn sound with it all to be hidden! The tank and compressor (using additional compressor bracket) fit perfectly on the passenger side frame rail. I even have amp power steps and they clear nicely. Only thing that needs to be added to the kit in my opinion is a 90 degree fitting for the pop off valve being I had to install it on the side mounted to the frame rail. The rhino horns mount perfectly above the rear differential facing forward. Spare tire is still in place. The bells clear the DEF tank and 5 inch exhaust. Sound is great and they are very loud. I'm extremely satisfied with this kit for the price and the ability to hide it so well.