12-14 Chevy Silverado 2500 HD Direct-Fit Catalytic Converter 5582812 Magnaflow distributor-vacuum-advance-line Other historic literature stated that

Other historic literature stated that you could expect reduced valve train noise from these cast aluminum M/T valve covers

6 V8 1965 - 1969 Plymouth Satellite 383/6

6 V8 1970 - 1971 Mercury Cyclone   351/5

Also Fits gMC Sierra 2500 HD

12-14 Chevy Silverado 2500 HD Direct-Fit Catalytic Converter 5582812 Magnaflow distributor-vacuum-advance-line Other historic literature stated thatOverview: Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct Fit Catalytic Converter 5582812. With features including free flowing mandrel bent tubing and highly corrosion resistant, stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state of the art metrology department uses the latest 3D scanning systems during research