I ditched the Nippon Denso "squeakers" on my V11S and added the loudest Fiamm electric horns I could find. The high note one is 130db and the low one is 138db. Now my bike sounds like a truck!!! I made a quick and dirty bracket out of aluminum bar stock, hose clamped it to the cross-member behind the oil cooler. Getting it in place was a real pain, the oil cooler had to be unbolted to allow some hand access. Getting the nuts and wires onto the horns in such a constrained location was a