# MagnaFlow 4551252 California Direct Fit Catalytic Converter (3" ID/3" OD) for 2011-2015 Chevrolet Silverado 2500 Hd and More ### Performance Overview Magnaflow's California Catalytic Converter is designed to be CARB compliant. The catalytic converter's ribbed body is designed to minimize distortion and expansion of the body to hold the ceramic catalyst in place. magnaflow's Catalytic Converters are made of stainless steel and are backed by their limited lifetime warranty. ### Key Features - Brand: MagnaFlow - Part number: 4551252 - Product type: California Direct Fit Catalytic Converter (3" ID/3" OD) - Designed for compatible vehicle applications listed on this page ### Vehicle Fitment - 2011 Chevrolet Silverado 2500 Hd, Note: Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" - 2012 Chevrolet Silverado 2500 Hd, Note: Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" - 2013 Chevrolet Silverado 2500 Hd, Note: Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" - 2014 Chevrolet Silverado 2500 Hd, Note: Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" - 2015 Chevrolet Silverado 2500 Hd, Note: High Country, Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" - 2011 Chevrolet Silverado 3500 Hd, Note: Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" - 2012 Chevrolet Silverado 3500 Hd, Note: Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" - 2013 Chevrolet Silverado 3500 Hd, Note: Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" ### FAQ **Will this fit my vehicle?** Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase. **What part number is this?** The listed part number is 4551252. **Is this product designed for direct replacement?** Yes. This product is intended to match compatible vehicle applications listed in the fitment section. **Should I confirm fitment before ordering?** Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering. ### Common Searches - California Direct Fit Catalytic Converter (3" ID/3" OD) for Chevrolet Silverado 2500 Hd - 4551252 fitment - MagnaFlow California Direct Fit Catalytic Converter (3" ID/3" OD) - 2011 Chevrolet Silverado 2500 Hd California Direct Fit Catalytic Converter (3" ID/3" OD) ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 2011 Chevrolet Silverado 2500 Hd Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" 2012 Chevrolet Silverado 2500 Hd Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" 2013 Chevrolet Silverado 2500 Hd Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" 2014 Chevrolet Silverado 2500 Hd Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" 2015 Chevrolet Silverado 2500 Hd High Country, Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" 2011 Chevrolet Silverado 3500 Hd Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" 2012 Chevrolet Silverado 3500 Hd Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" 2013 Chevrolet Silverado 3500 Hd Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" 2014 Chevrolet Silverado 3500 Hd Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" 2015 Chevrolet Silverado 3500 Hd High Country, Lt, Ltz, Wt; 6.0L; 3.00"; 3.00" 2011 GMC Sierra 2500 Hd Denali, Sle, Slt, Wt; 6.0L; 3.00"; 3.00" 2012 GMC Sierra 2500 Hd Denali, Sle, Slt, Wt; 6.0L; 3.00"; 3.00" 2013 GMC Sierra 2500 Hd Denali, Sle, Slt, Wt; 6.0L; 3.00"; 3.00" 2014 GMC Sierra 2500 Hd Denali, Sle, Slt, Wt; 6.0L; 3.00"; 3.00" 2015 GMC Sierra 2500 Hd Base, Denali, Sle, Slt; 6.0L; 3.00"; 3.00" 2011 GMC Sierra 3500 Hd Denali, Sle, Slt, Wt; 6.0L; 3.00"; 3.00" 2012 GMC Sierra 3500 Hd Denali, Sle, Slt, Wt; 6.0L; 3.00"; 3.00" 2013 GMC Sierra 3500 Hd Denali, Sle, Slt, Wt; 6.0L; 3.00"; 3.00" 2014 GMC Sierra 3500 Hd Denali, Sle, Slt, Wt; 6.0L; 3.00"; 3.00" 2015 GMC Sierra 3500 Hd Base, Denali, Sle, Slt; 6.0L; 3.00"; 3.00" ## Details - **Price:** 5599.9 CAD - **Vendor:** MagnaFlow - **Type:** California Direct Fit Catalytic Converter (3" ID/3" OD) - **Tags:** 2011 Chevrolet Silverado 2500 Hd, 2011 Chevrolet Silverado 3500 Hd, 2011 GMC Sierra 2500 Hd, 2011 GMC Sierra 3500 Hd, 2012 Chevrolet Silverado 2500 Hd, 2012 Chevrolet Silverado 3500 Hd, 2012 GMC Sierra 2500 Hd, 2012 GMC Sierra 3500 Hd, 2013 Chevrolet Silverado 2500 Hd, 2013 Chevrolet Silverado 3500 Hd, 2013 GMC Sierra 2500 Hd, 2013 GMC Sierra 3500 Hd, 2014 Chevrolet Silverado 2500 Hd, 2014 Chevrolet Silverado 3500 Hd, 2014 GMC Sierra 2500 Hd, 2014 GMC Sierra 3500 Hd, 2015 Chevrolet Silverado 2500 Hd, 2015 Chevrolet Silverado 3500 Hd, 2015 GMC Sierra 2500 Hd, 2015 GMC Sierra 3500 Hd, 4551252, Auto Parts, Automotive, California Direct Fit Catalytic Converter (3" ID/3" OD), Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-4551252, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 5599.90 CAD | In stock | ## Images - MagnaFlow 4551252 California Direct Fit Catalytic Converter (3" ID/3" OD) --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-chevrolet-silverado-2500-hd-catalytic-converter-carb-4551252) > Updated: 2026-07-16