Looking for aftermarket parts to modify or upgrade your 2003 Chevrolet Express 3500 with catalytic converter direct fit? At Tunersports.com we carry a huge selection of the top name brand performance catalytic converter direct fit parts and accessories.

IN STOCK - DROPSHIPS 23052Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23052. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no ... MagnaFlow Conv DF 04 Acura TSX 2.4L 2003-2005 Chevrolet Express 3500 Base / LS $755.00 |
OUT OF STOCK 24399Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 24399. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no ... MagnaFlow Direct Fit Catalytic Converter 03-05 Express 2500 4.8L Passenger Side 2003-2007 Chevrolet Express 3500 Base / LS $982.00 |
IN STOCK - DROPSHIPS 24438Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 24438. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construc... MagnaFlow Direct Fit Catalytic Converter 03-07 GM 2500/3500 Passenger Side 2003-2009 Chevrolet Express 3500 Base / LS $507.00 |
IN STOCK - DROPSHIPS 447267MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 447267 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel const... MagnaFlow Direct Fit Catalytic Converter 03-09 GM 2500/3500 Driver Side 2003-2005 Chevrolet Express 3500 Base / LS $2,085.00 |
OUT OF STOCK 447273Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 447273. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, n... MagnaFlow Direct Fit Catalytic Converter 03-07 GM 2500/3500 Passenger Side 2003-2005 Chevrolet Express 3500 Base / LS $2,093.00 |
IN STOCK - DROPSHIPS 49601Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49601. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no... MagnaFlow Direct Fit Catalytic Converter 03-07 GM 2500/3500 D/S OEM 2003-2009 Chevrolet Express 3500 Base / LS $601.00 |
IN STOCK - DROPSHIPS 49602Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49602. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no... MagnaFlow Direct Fit Catalytic Converter 03-07 GM 2500/3500 P/S OEM 2003-2009 Chevrolet Express 3500 Base / LS $604.00 |
IN STOCK - DROPSHIPS 49603Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49603. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no... MagnaFlow Direct Fit Catalytic Converter 03-07 GM 2500/3500 P/S OEM 2003-2009 Chevrolet Express 3500 Base / LS $533.00 |
IN STOCK - DROPSHIPS 51534Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51534. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no... MagnaFlow Direct Fit Catalytic Converter 03-05 Express 2500 4.8L Passenger Side 2003-2007 Chevrolet Express 3500 Base / LS $1,227.00 |
IN STOCK - DROPSHIPS 93407Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 93407. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no ... MagnaFlow Direct Fit Catalytic Converter 03-09 GM 2500/3500 Driver Side 2003-2009 Chevrolet Express 3500 Base / LS $572.00 |
IN STOCK - DROPSHIPS 93408Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 93408. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no ... MagnaFlow Direct Fit Catalytic Converter 03-07 GM 2500/3500 Passenger Side 2003-2009 Chevrolet Express 3500 Base / LS $575.00 |