That sounds freakin' nice! I wonder what it would be like without the LT headers. I just don't want to take a chance of voiding my warranty, and I imagine just the x-pipe and loudmouth sound sick together.
Current: 2014 BRM 2SS/RS 1LE w/NAV, NPP, Recaros
Former garage: 2010 IBM Camaro 2SS/RS 6M
2011 Avalanche LT