MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-252 for Chevrolet Silverado 2500 HD & GMC Sierra 2500 HD

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-252. 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 and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 2011-2019 Chevrolet Silverado 2500 HD, 2011-2019 GMC Sierra 2500 HD, and additional vehicles. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems. Magnaflow OEM Grade Direct-Fit Catalytic Converter MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-252 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 construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. This direct-fit catalytic converter is designed to fit the 2011-2019 Chevrolet Silverado 2500 HD, 2011-2019 GMC Sierra 2500 HD, and additional vehicles. Hardware is included to eliminate the hassle of working with corroded factory parts. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

• Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
• Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
• OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
• High Strength 16 Gauge 409 Stainless Steel Tubing For Exceptional Corrosion Resistance And Maximum Service Life
• Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
• Expertly Crafted To Replicate Oem-Like Flow Dynamics/Maintaining Factory Performance And Fuel Efficiency
• Precision Stamped Collector Design For Optimal Exhaust Flow/Engine Efficiency And Fuel Economy
• Torca Accuseal Exhaust Clamps Provide A Full 360-Degree Equally Distributed Clamping Force
• Simplifies Installation With Essential Gaskets And Hardware Being Included In The Box
• OE-Sized Barbed Exhaust Hangers Made From Corrosion-Resistant 410 Stainless Steel
• Your Trusted Source For EPA-Compliant Catalytic Converters
• Mandrel Bent Tubing Retains Oem-Like Design And Geometry
• Durable 308 stainless steel MIG welds

Ensure your vehicle stays emissions-compliant and maintains optimal performance with the MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter part number 21-252. Designed specifically for the 2011-2019 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD models, this converter helps keep the check engine light off while providing reliable, long-lasting service. Crafted from high-quality 16-gauge 409 stainless steel, it resists corrosion and withstands harsh conditions, ensuring durability over time. The mandrel-bent tubing preserves OEM-like flow dynamics, promoting smooth exhaust flow that enhances fuel economy and engine efficiency. Additionally, the precision-stamped collector design optimizes exhaust flow, further supporting engine performance and emissions compliance. This direct-fit converter includes OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, reducing noise and vibration for a quieter, smoother ride. Installation is straightforward with included hardware and gaskets, allowing DIY enthusiasts to replace their existing part without cutting or welding, thanks to the factory-style design and pre-welded components. MagnaFlow's advanced 3D metrology ensures a precise fit, replicating original equipment specifications, which guarantees compatibility and proper function. The laser fusion welding technique minimizes leak potential, while the low-mass, compact design improves thermal efficiency, reducing heat buildup during operation. This converter meets or exceeds EPA regulations, making it a legal choice for federally registered vehicles with California or federal emissions systems. Whether you’re replacing a worn-out unit or upgrading your exhaust system, MagnaFlow’s OEM-grade catalytic converter provides peace of mind with reliable emissions compliance and performance. It's an essential component for maintaining your vehicle’s environmental standards while supporting optimal engine operation and longevity.

Features:

• EPA-compliant design ensures legal emissions performance for federal and California vehicles

• Mandrel-bent tubing maintains OEM-like flow and geometry for optimal exhaust flow

• Corrosion-resistant 410 stainless steel barbed exhaust hangers reduce noise and vibration

• High-strength 16 gauge 409 stainless steel tubing offers exceptional durability and corrosion resistance

• Laser fusion welds minimize leakage and enhance overall structural integrity

• Factory-style, direct-fit design allows for easy DIY installation without cutting or welding

• Includes essential hardware and gaskets for a complete installation

• Precision-stamped collector improves exhaust flow and engine efficiency

• Compact, low-mass design enhances thermal efficiency and reduces heat buildup

• Manufactured with advanced 3D metrology to ensure perfect fit and function

Fits
Chevrolet Silverado 2500 HD High Country 2015
Chevrolet Silverado 2500 HD High Country 2016
Chevrolet Silverado 2500 HD High Country 2017
Chevrolet Silverado 2500 HD High Country 2018
Chevrolet Silverado 2500 HD High Country 2019
Chevrolet Silverado 2500 HD LT 2011
Chevrolet Silverado 2500 HD LT 2012
Chevrolet Silverado 2500 HD LT 2013
Chevrolet Silverado 2500 HD LT 2014
Chevrolet Silverado 2500 HD LT 2015
Chevrolet Silverado 2500 HD LT 2016
Chevrolet Silverado 2500 HD LT 2017
Chevrolet Silverado 2500 HD LT 2018
Chevrolet Silverado 2500 HD LT 2019
Chevrolet Silverado 2500 HD LTZ 2011
Chevrolet Silverado 2500 HD LTZ 2012
Chevrolet Silverado 2500 HD LTZ 2013
Chevrolet Silverado 2500 HD LTZ 2014
Chevrolet Silverado 2500 HD LTZ 2015
Chevrolet Silverado 2500 HD LTZ 2016
Chevrolet Silverado 2500 HD LTZ 2017
Chevrolet Silverado 2500 HD LTZ 2018
Chevrolet Silverado 2500 HD LTZ 2019
Chevrolet Silverado 2500 HD WT 2011
Chevrolet Silverado 2500 HD WT 2012
Chevrolet Silverado 2500 HD WT 2013
Chevrolet Silverado 2500 HD WT 2014
Chevrolet Silverado 2500 HD WT 2015
Chevrolet Silverado 2500 HD WT 2016
Chevrolet Silverado 2500 HD WT 2017
Chevrolet Silverado 2500 HD WT 2018
Chevrolet Silverado 2500 HD WT 2019
Chevrolet Silverado 3500 HD High Country 2015
Chevrolet Silverado 3500 HD High Country 2016
Chevrolet Silverado 3500 HD High Country 2017
Chevrolet Silverado 3500 HD High Country 2018
Chevrolet Silverado 3500 HD High Country 2019
Chevrolet Silverado 3500 HD LT 2011
Chevrolet Silverado 3500 HD LT 2012
Chevrolet Silverado 3500 HD LT 2013
Chevrolet Silverado 3500 HD LT 2014
Chevrolet Silverado 3500 HD LT 2015
Chevrolet Silverado 3500 HD LT 2016
Chevrolet Silverado 3500 HD LT 2017
Chevrolet Silverado 3500 HD LT 2018
Chevrolet Silverado 3500 HD LT 2019
Chevrolet Silverado 3500 HD LTZ 2011
Chevrolet Silverado 3500 HD LTZ 2012
Chevrolet Silverado 3500 HD LTZ 2013
Chevrolet Silverado 3500 HD LTZ 2014
Chevrolet Silverado 3500 HD LTZ 2015
Chevrolet Silverado 3500 HD LTZ 2016
Chevrolet Silverado 3500 HD LTZ 2017
Chevrolet Silverado 3500 HD LTZ 2018
Chevrolet Silverado 3500 HD LTZ 2019
Chevrolet Silverado 3500 HD WT 2011
Chevrolet Silverado 3500 HD WT 2012
Chevrolet Silverado 3500 HD WT 2013
Chevrolet Silverado 3500 HD WT 2014
Chevrolet Silverado 3500 HD WT 2015
Chevrolet Silverado 3500 HD WT 2016
Chevrolet Silverado 3500 HD WT 2017
Chevrolet Silverado 3500 HD WT 2018
Chevrolet Silverado 3500 HD WT 2019
Chevrolet Suburban 3500 HD LS 2017
Chevrolet Suburban 3500 HD LS 2018
Chevrolet Suburban 3500 HD LS 2019
Chevrolet Suburban 3500 HD LT 2017
Chevrolet Suburban 3500 HD LT 2018
Chevrolet Suburban 3500 HD LT 2019
GMC Sierra 2500 HD Base 2015
GMC Sierra 2500 HD Base 2016
GMC Sierra 2500 HD Base 2017
GMC Sierra 2500 HD Base 2018
GMC Sierra 2500 HD Base 2019
GMC Sierra 2500 HD Denali 2011
GMC Sierra 2500 HD Denali 2012
GMC Sierra 2500 HD Denali 2013
GMC Sierra 2500 HD Denali 2014
GMC Sierra 2500 HD Denali 2015
GMC Sierra 2500 HD Denali 2016
GMC Sierra 2500 HD Denali 2017
GMC Sierra 2500 HD Denali 2018
GMC Sierra 2500 HD Denali 2019
GMC Sierra 2500 HD SLE 2011
GMC Sierra 2500 HD SLE 2012
GMC Sierra 2500 HD SLE 2013
GMC Sierra 2500 HD SLE 2014
GMC Sierra 2500 HD SLE 2015
GMC Sierra 2500 HD SLE 2016
GMC Sierra 2500 HD SLE 2017
GMC Sierra 2500 HD SLE 2018
GMC Sierra 2500 HD SLE 2019
GMC Sierra 2500 HD SLT 2011
GMC Sierra 2500 HD SLT 2012
GMC Sierra 2500 HD SLT 2013
GMC Sierra 2500 HD SLT 2014
GMC Sierra 2500 HD SLT 2015
GMC Sierra 2500 HD SLT 2016
GMC Sierra 2500 HD SLT 2017
GMC Sierra 2500 HD SLT 2018
GMC Sierra 2500 HD SLT 2019
GMC Sierra 2500 HD WT 2011
GMC Sierra 2500 HD WT 2012
GMC Sierra 2500 HD WT 2013
GMC Sierra 2500 HD WT 2014
GMC Sierra 3500 HD Base 2015
GMC Sierra 3500 HD Base 2016
GMC Sierra 3500 HD Base 2017
GMC Sierra 3500 HD Base 2018
GMC Sierra 3500 HD Base 2019
GMC Sierra 3500 HD Denali 2011
GMC Sierra 3500 HD Denali 2012
GMC Sierra 3500 HD Denali 2013
GMC Sierra 3500 HD Denali 2014
GMC Sierra 3500 HD Denali 2015
GMC Sierra 3500 HD Denali 2016
GMC Sierra 3500 HD Denali 2017
GMC Sierra 3500 HD Denali 2018
GMC Sierra 3500 HD Denali 2019
GMC Sierra 3500 HD SLE 2011
GMC Sierra 3500 HD SLE 2012
GMC Sierra 3500 HD SLE 2013
GMC Sierra 3500 HD SLE 2014
GMC Sierra 3500 HD SLE 2015
GMC Sierra 3500 HD SLE 2016
GMC Sierra 3500 HD SLE 2017
GMC Sierra 3500 HD SLE 2018
GMC Sierra 3500 HD SLE 2019
GMC Sierra 3500 HD SLT 2011
GMC Sierra 3500 HD SLT 2012
GMC Sierra 3500 HD SLT 2013
GMC Sierra 3500 HD SLT 2014
GMC Sierra 3500 HD SLT 2015
GMC Sierra 3500 HD SLT 2016
GMC Sierra 3500 HD SLT 2017
GMC Sierra 3500 HD SLT 2018
GMC Sierra 3500 HD SLT 2019
GMC Sierra 3500 HD WT 2011
GMC Sierra 3500 HD WT 2012
GMC Sierra 3500 HD WT 2013
GMC Sierra 3500 HD WT 2014