"Please consider a search before posting. Folks on this site PIONEERED functional offroad use of these trucks." The answer to many common lift questions can be found here My Build Thread
I've never understood the functional purposes of a train horn on a suv. Does it alert oncoming trucks when you're going around a switchback? Sounds like it would disturb a lot of wildlife or other people out enjoying nature.
I advocate for trail stealth on Tread Lightly principles. I had a Flowmaster 70 and removed it for the same reason. But welcome! Lifted is good! Offloading makes the truck happier than being a show poodle.