Exhaust Systems 2006 -2007 6.6L LLY/LBZ

2006-2007 GM 6.6L Duramax (All Crew & Ext. Cabs) MBRP 4" Installer Series Cat-Back Exhaust System S6012AL

2006-2007 GM 6.6L Duramax (All Crew & Ext. Cabs) MBRP 4" Dual XP Series Cat-Back Exhaust System S6014409