Product Details Home > Product > Product Details Products Details MBRP 4″ XP SERIES FILTER-BACK EXHAUST SYSTEM|2007.5-2012 DODGE 6.7L CUMMINS (ALL CABS & BEDS) Part Number: SKU: S6130409BKSJ Categories: 2007.5-2018 6.7L 24V Cummins, Exhaust Systems Call us now for our best price (574) 349-4354 Product Description Extra Info: MBRP Exhaust XP Series, Filter Back System. 4in. Filter Back; Single Side Exit; T409