louder than stock. They are still a " Beeeeeep " sounding set of horns. You'll be disappointed if your looking for a "honking" horn sound. After trying to make "Italian air horns" work, (relay hell), went with some Cadillac replacement horns found on Rock Auto. No extra relays, used stock wiring, sounds loud like a "Big" car. Never looked back. Check my previous post for details.