I use this to great effect. It conveniently (only had to make one custom little L bracket) mounted up to a spot where an emissions canister USED to live. Stock horn is still wired up too, so you get a little two tone action. This moves people at freeway speed who don't check their blind spot/mirrors.

Also good for scaring the shit out of people who are too busy texting to notice it turned green. And if you're a real dick, it is great at livening up a solid-red-hand pedestrian's day.

I'm in the same camp for my 05. I want one of these!

https://www.amazon.com/Stebel-11690019-Nautilus-Compact-Black/dp/B00CMX20H4/ref=sr_1_1?keywords=stebel&qid=1561581925&s=gateway&sr=8-1

i ran a stebel air horn on my vstrom. pants would shit from 200 yards away.