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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 2011-2016 Chevrolet Silverado 2500 HD, 2011-2016 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.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2019 | Chevrolet | Silverado 2500 HD | High Country |
| 2011-2019 | Chevrolet | Silverado 2500 HD | LT |
| 2011-2019 | Chevrolet | Silverado 2500 HD | LTZ |
| 2011-2019 | Chevrolet | Silverado 2500 HD | WT |
| 2015-2019 | Chevrolet | Silverado 3500 HD | High Country |
| 2011-2019 | Chevrolet | Silverado 3500 HD | LT |
| 2011-2019 | Chevrolet | Silverado 3500 HD | LTZ |
| 2011-2019 | Chevrolet | Silverado 3500 HD | WT |
| 2017-2019 | Chevrolet | Suburban 3500 HD | LS |
| 2017-2019 | Chevrolet | Suburban 3500 HD | LT |
| 2015-2019 | GMC | Sierra 2500 HD | Base |
| 2011-2019 | GMC | Sierra 2500 HD | Denali |
| 2011-2019 | GMC | Sierra 2500 HD | SLE |
| 2011-2019 | GMC | Sierra 2500 HD | SLT |
| 2011-2014 | GMC | Sierra 2500 HD | WT |
| 2015-2019 | GMC | Sierra 3500 HD | Base |
| 2011-2019 | GMC | Sierra 3500 HD | Denali |
| 2011-2019 | GMC | Sierra 3500 HD | SLE |
| 2011-2019 | GMC | Sierra 3500 HD | SLT |
| 2011-2014 | GMC | Sierra 3500 HD | WT |
Catalytic Converter Direct Fit
Direct fit catalytic converter parts and assemblies for cars, trucks, SUVs, and performance vehicles are stocked at Black Ops Auto Works. Shop direct replacement converters, front and rear converter assemblies, Y-pipes, manifold converters, federal compliant units, and high-flow upgrades for domestic and import applications. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct emissions component ships the first time. This collection covers vehicle-specific systems for HEMI, LS, LT, Coyote, EcoBoost, VQ, 2JZ, BMW, Toyota, Jeep, Ford, and GM applications. What This Direct Fit Catalytic Converter Collection Covers Vehicle specific replacement assemblies Direct fit converters match the factory exhaust routing, flange locations, oxygen sensor provisions, and hanger positions for a cleaner installation than a universal converter. Options include single converters, paired assemblies, Y-pipes, front pipes, and converter plus resonator assemblies...
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Chevrolet Silverado Parts & Accessories
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Exhaust Systems
Performance exhaust systems for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop cat-back systems, axle-back systems, turbo-back systems, headers, downpipes, mid-pipes, mufflers, resonators, catalytic converters, exhaust tips, exhaust valve controllers, oxygen sensors, exhaust brakes, and motorcycle and powersports exhausts for Mustang, Camaro, Challenger, Corvette, Silverado, and Super Duty platforms. Every product is filterable by exhaust position, material, pipe diameter, and vehicle year, make, model, and trim so the correct fitment ships the first time. Black Ops Auto Works carries 7,441 exhaust SKUs across every position of the exhaust system. What This Category Covers Exhaust upgrades change sound, appearance, and in some cases power. Exhaust fitment depends on engine, drivetrain, and factory exit position, so confirm the exact platform before ordering any exhaust component. Exhaust Position Cat-back, axle-back, turbo-back, and header-back systems e...
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MagnaFlow
MagnaFlow exhaust systems for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop MagnaFlow Street Series cat-back systems, axle-back exhausts, mufflers, direct-fit catalytic converters, resonators, and exhaust tips for Chevrolet Silverado, Ford F-150, RAM 1500, Jeep Wrangler and Gladiator, Nissan 350Z, Toyota Tacoma and Yaris, and Volkswagen and BMW platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 922 MagnaFlow SKUs across cat-back, axle-back, muffler, and catalytic converter categories. What This Brand Covers MagnaFlow is known for straight-through stainless steel mufflers, a signature deep tone, and one of the widest direct-fit vehicle applications in the aftermarket exhaust industry, including gas and diesel trucks, SUVs, muscle cars, and import platforms. Core Product Families Street Series cat-back systems deliver a bold, aggressive tone for d...
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