BUY WITH CONFIDENCE -- Backed by Walker's 25,000-mile/40,000-kilometer emissions and 5-year 50,000-mile/80,000-kilometer structural integrity warranty. Visit Walkerexhaust.com for details. Part Number 50572 Inlet Type A 3 Bolt Welded Flange Outlet Type A 2 Bolt Welded Flange Substrate Material Stainless Steel Type Walker Ultra EPA 50572 Direct Fit Catalytic Converter 4.125" Inlet (ID) 3.515" Outlet (OD) for Chevrolet Silverado 2500 HD | Catalytic Converter Weight 33.40 lbs Height 21.00" Width 32.00" Length 54.00" Buyer's Guide 2012-2016 Chevrolet Silverado 2500 HD; 2012-2016 Chevrolet Silverado 3500 HD; 2012-2016 GMC Sierra 2500 HD; 2012-2016 GMC Sierra 3500 HD Interchange Data Brand Part Number No interchange data available.