2011-2015 GM 6.6L Duramax LML (All Cabs & Beds) MBRP 4" Dual XP Series Filter-Back Exhaust System S6034409
2011-2015 GM 6.6L Duramax LML (All Cabs & Beds) MBRP 4" Dual Installer Series Filter-Back Exhaust System S6034AL
2011-2014 GM 6.6L Duramax LML MBRP 4" Dual Installer Series Filter-Back Exhaust System S6034AL
