Installed a Wolo Bad Boy air horn yesterday. Not really difficult as I have installed several before. It's a real PITA to get those fairings back on however. Took several times of shifting the horn mounting to not hit the horn with the fairing. Plus it just didn't want to line up. Sure makes a lot of noise in an enclosed metal shop. Now I wait for the gear indicator and the reflective wheel strips to show up, and the snow to melt of course.