This Rawlings version of Chevrolet's 2009 Duramax sounds incredible. Two JL Audio 13TW5 Thin Line subwoofers fill a custom subwoofer box mounted beneath the rear seats. The fit is perfect. No part of the subs touch the rear floor restricting movement or air flow. Top of the line JL Audio ZR component tweeters were mounted in the A pillar's with the mid's in the doors. The sound is crisp and clean with a good dose of bass from the 13's.
