Looking for aftermarket parts to modify or upgrade your 2003 Chevrolet Silverado 1500 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 for your Silverado 1500.
Whether you have a 2003 Chevrolet Silverado 1500 in Base to WT trim we have you covered. We have 6 catalytic converter direct fit available to mod your Silverado 1500. All parts have free shipping to the Continental US 48 States.
 OUT OF STOCK 47-44001This system is constructed of 2-1/2" mandrel-bent 409 stainless steel tubing for maximum strength and durability. This kit comes with a EPA Compliant catalytic converters for a bolt-on and go installation. 100% MIG-welded for strength and durability.... aFe Direct Fit Catalytic Converter 99-07 GM Trucks/SUVs V6 4.3L / V8 4.8L/5.3L 1999-2005 Chevrolet Silverado 1500 Base 1999-2006 Chevrolet Silverado 1500 LS / LT 2002-2006 Chevrolet Silverado 1500 WT $821.57 |
 SHIPS FROM MANUFACTURER 24458MagnaFlow Direct-Fit Catalytic Converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority of the Direct-Fit Catalytic Converter products do not require welding; cutting or bending; limite... MagnaFlow Conv DF 03-06 Silverado SS Driver Side 2003-2006 Chevrolet Silverado 1500 SS $517.00 |
 SHIPS FROM MANUFACTURER 4451419MagnaFlow specializes in superior catalytic converter and exhaust technology and each converter is designed to the exact original equipment specifications while keeping the Check Engine Light off. May require basic automotive knowledge for proper installation and professional installation is always ... Magnaflow California Direct Fit Converter 03 Cadillac Tahoe 4.8L 2003-2003 Chevrolet Silverado 1500 Base / LS / LT / WT $2,201.00 |
 SHIPS FROM MANUFACTURER 4551419MagnaFlow specializes in superior catalytic converter and exhaust technology and each converter is designed to the exact original equipment specifications while keeping the Check Engine Light off. May require basic automotive knowledge for proper installation and professional installation is always ... MagnaFlow Conv Direct Fit OEM 2005 GMC Sierra/Chevrolet Silverado 1500/Cadillac Escalade Underbody 2003-2005 Chevrolet Silverado 1500 Base / LS / LT / WT $3,236.00 |
IN STOCK 93419MagnaFlow specializes in superior catalytic converter and exhaust technology and has spent the past 30+ years earning its reputation as a global market leader. American engineered and manufactured, MagnaFlow Catalytic Converters combine efficient industrial design to produce a product that exceeds, ... MagnaFlow Conv DF 02-06 Cadillac Escalade / 02-06 Chevy Avalanche 5.3L Dual Conv Y-Pipe Assembly 2WD 1999-2005 Chevrolet Silverado 1500 Base 1999-2006 Chevrolet Silverado 1500 LS / LT 2002-2006 Chevrolet Silverado 1500 WT $595.00 |
 SHIPS FROM MANUFACTURER 93602MagnaFlow Direct-Fit Catalytic Converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority of the Direct-Fit Catalytic Converter products do not require welding; cutting or bending; limite... MagnaFlow Conv DF 02-06 Cadillac Escalade / 02-06 GM Yukon (Inc Denali) 6.0L P/S 2003-2006 Chevrolet Silverado 1500 SS $570.00 |