2011-2017 GM 6.6L DURAMAX (ALL CREW & EXT. CABS) The Best Systems Start with the Best Materials The MBRP 5" XP Series Filter-Back Exhaust System S60360409 for your 2011-2017 GM 6.6L Duramax LML/L5P is the performance exhaust of choice for...
2011-2017 GM 6.6L DURAMAX (ALL CREW & EXT. CABS) The Best Systems Start with the Best Materials The MBRP S6032304 4" Pro Series Filter-Back Exhaust System for your 2011-2017 GM 6.6L Duramax is the best performance exhaust system that money can...