Dynamat DYN19405 - Xtreme Trunk Kit 20 sq.ft 18" x 32" x 5 Sheets Car Sound Deadening MatDynamat DYN19405 Xtreme Trunk Kit 20 sq. ft 18"" x 32"" x 5 Sheets Car Sound Deadening Mat Todays powerful subwoofers cause a vehicles trunk to flex and vibrate, which creates bass distortion, a reduction in maximum bass output, and poor sound quality. Some people may find trunk rattles cool, but it is actually just bad bass. If you really want to impress, install the Dynamat Xtreme Trunk Kit and show how you can pump clean, clear, crisp bass without