Featuring Aristo Clean by Design® advanced catalyst technology to handle the toughest emissions problems | Highly efficient loadings for lower cost and better converter efficiency | 409 stainless steel shell and neck construction for longer life | Hardware included (where needed) for faster, easier installation Part Number 642000 Inlet Gasket Yes Inlet Type A 2 Bolt Welded Flange O2 Port 0 Outlet Gasket Not Required Outlet Type A 2.50 OD Pipe Substrate Material Stainless Steel | Ceramic Type AP Exhaust Catalytic Converter | Federal / EPA Direct-Fit | AP Emissions Weight 6.44 lbs Height 4.50" Width 4.50" Length 20.00" Buyer's Guide 2013-2012 CHEVROLET IMPALA Catalytic Converter, 2013-2012 CHEVROLET IMPALA Catalytic Converter-Direct Fit, 2016-2014 CHEVROLET IMPALA LIMITED Catalytic Converter, 2016-2014 CHEVROLET IMPALA LIMITED Catalytic Converter-Direct Fit Interchange Data Brand Part Number No interchange data available.