Those big ol trucks have air horns.
I believe JCWhitney (www.jcwhitney.com) sells them.
Or you can do what my buddy did. 3 airhorns with 2 compressors. :lol:
I believe JCWhitney (www.jcwhitney.com) sells them.
Or you can do what my buddy did. 3 airhorns with 2 compressors. :lol: