Very nice replacement horn for OEM - sounds like larger air horn. Big sound does come in little packages. Put in 2011 Duramax. Loud enough to be heard, but not "ear busting" loud like semi horn. Nice deep sound.
Install Time: 30-60 minutes
Horn works amazing, very loud and quite easy to install. Very deep sound, and can be heard from a long distance. Makes deer jump instead of just run away, def worth the money. Very satisfied.