One of our favorite events! Heat Wave Inc is a custom truck and car show promotion company that began in 1989 and was founded by two custom truck clubs in Austin, Texas. The first show, now called the Custom Sounds Texas Heat Wave, is held in late July every year and is now in its 3rd decade. The Heat Wave is known for its large crowds of spectators and the growing number of quality show vehicles that attend from all over the United States, Canada, Mexico. Check out our top 10 pics from this industry staple event.