Has Just Released Performance Exhausts for the 2011 Duramax
These Are Down Pipe Back, Off Road, No Bung Kits
These Are Race Only
These come in 4" Muffler and N/M Kits
4" N/M Dual Kits
&
5" Muffler and N/M Kits
These Exhausts Require A Tuner/Programmer
Call & Get Yours Today!!
877-354-7008
OR
@ http://www.mightydiesel.com/store/index.php?cPath=144_170_171_260