Before you consider purchasing any horns, I'd strongly suggest that you listen to some in a car that is close to yours because most of the horns made for car audio are copies of each other. The problem is that the device that they copied never worked very well in the first place. Horns require so much equalization without which they sound harsh. One major factor in any horn installation is the placement of the mid-bass driver. If you can't place it correctly, the system will sound terrible.