Had my Kleinn 734 Kit installed on my 2014 today, and I must say, I am over the top happy with this kit! The quality is top notch from top to bottom on this kit, and the horns are a nice deep train tone and LOUDER than I was expecting (and I was expecting them to be loud!). I wish I would have done this a long time ago. I no longer feel the desire to remove my spare tire and install a K5LA set.. This kit fulfills all my Train Horn expectations, for lack of a better way to explain it.
The install was slow and there were a lot of hiccups due to the staff either not knowing what to do and/or reading the directions wrong, at one point they even mounted the horn bracket upside down and couldn't figure out why the exhaust hanger would not go back. They initially blamed it on the Roush exhaust and talked about fabricating something, but I jumped in and showed them the Kleinn video and that they had it installed upside down (this wasted over an hour). Wiring the horn was also a nightmare, but it got done. I wanted it wired to my actual horn with a switch to turn it on/off, as well as a switch that runs the compressor, and it got done. It was wired to AUX1 (compressor) and AUX2 (Train Horn on/off). I had no input on this.
For anyone on the fence on this kit, all I can say is do it! It's an expensive kit but top notch and delivers in every way.
