Designed, engineered and manufactured by Fiamm. Easy to install pre-installed gasket 5-year UV rating Limited Lifetime Warranty Our Hidden Horns blend neatly with today’s cleaner, sleeker boat designs. Only the attractive grills in black, white or stainless steel are visible. Made with top of the line materials and workmanship, horns will provide years of trouble free operation and the best sound quality available in the market. All FIAMM Marine horns meet and exceed ABYC, NMMA and Coast Guard requirements and are NMMA type accepted. Aftermarket units are shipped in attractive packaging with FIAMM name.