We buy all 2007.5 and up diesel emission systems listed below. 2007.5 + Dodge Cummins 2007.5 + Duramax 2008-2010 Ford 6.4 Powerstroke 2011 + Ford 6.7 Powerstroke Dodge Eco Diesel Jeep CRD Diesel We also buy complete semi truck, tractor and industrial equi