A real horn...

We installed a REAL set of Leslie train horns on my fathers last pickup. These things were huge and a little loud

There were 3 various length horns, with the longest one about 30" long. We installed a ballvalve at the base of the seat. Now that was a loud horn.... Since he sold it, we took the horns off and installed them on our fire departments tanker.....that gets traffic splitting.
Mike - Station 38 Fire Chief -
'03 Sunset, Lux, Sunroof, Air Suspension, SMA HD Brush Gaurd, SMA Valance w/ PIAA 520's, Stainless HUMMER Inserts, Gibson SS Headers, Corsa SS Sport exhaust, 12 Hide Away Strobes, Whelen Dash Dual Strobe, 2 Whelen LED bars, Remote Mount Motorola Low Band, XM Radio