The stock horn is terrible. I wanted to go with the Stebel, which is very loud, but requires an additioanl wring harness/relay. I didnt want to have to deal with the extra wiring so I bought this PIAA which is considerably louder than stock. The install was pretty easy. Had to take of the one panel (3 screws) and dremel a little bit near the bottom. However, the electrical connection is plug and play. The horns is so much louder. Here are some pics.