Wanted to stop in a say hey. Been a lurker for a long time. I am going to try to piece together a K3 kit as funds allow to get in the game and do it right the first time. I’ve wanted a train horn for awhile but family obligations come first. This stuff was so much easier before women and kids came into the picture! 
(If you are reading this honey I am just kidding I swear!) LOL. Anyway glad to be here to gain some knowledge. I will be installing on my 2007 Chevrolet Duramax 2500HD Z-71 that has a 6 inch lift and 36 inch tires which is a work in progress itself. Hope to have pictures of my install to share soon!
Thanks
JJ