Magnaflow 19-20 GMC Sierra 1500 Single Underbody 4.3L/5.3L Direct Fit Catalytic Converter - 280656

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 280656. 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. Designed to fit the 2019-2020 Chevrolet Silverado 1500 and 2019-2020 GMC Sierra 1500, this direct-fit catalytic converter also interchanges with OE parts 19420299 and 23241309, among others. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. 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:

Year	Make	Model	Submodel
2019-2021	Chevrolet	Silverado 1500	Custom
2019-2023	Chevrolet	Silverado 1500	Custom Trail Boss
2019-2023	Chevrolet	Silverado 1500	High Country
2019-2023	Chevrolet	Silverado 1500	LT
2019-2023	Chevrolet	Silverado 1500	LT Trail Boss
2019-2023	Chevrolet	Silverado 1500	LTZ
2023	Chevrolet	Silverado 1500	PPV
2019-2023	Chevrolet	Silverado 1500	RST
2019-2021	Chevrolet	Silverado 1500	SSV
2019-2023	Chevrolet	Silverado 1500	WT
2022	Chevrolet	Silverado 1500 LTD	High Country
2022	Chevrolet	Silverado 1500 LTD	LT
2022	Chevrolet	Silverado 1500 LTD	LT Trail Boss
2022	Chevrolet	Silverado 1500 LTD	LTZ
2022	Chevrolet	Silverado 1500 LTD	RST
2022	Chevrolet	Silverado 1500 LTD	SSV
2022	Chevrolet	Silverado 1500 LTD	WT
2021-2023	Chevrolet	Suburban	Commercial
2021-2023	Chevrolet	Suburban	LS
2021-2023	Chevrolet	Suburban	LT
2021-2023	Chevrolet	Suburban	Premier
2021-2023	Chevrolet	Suburban	RST
2021-2023	Chevrolet	Suburban	Z71
2022-2023	Chevrolet	Tahoe	Commercial
2021-2023	Chevrolet	Tahoe	LS
2021-2023	Chevrolet	Tahoe	LT
2021-2023	Chevrolet	Tahoe	PPV
2021-2023	Chevrolet	Tahoe	Premier
2021-2023	Chevrolet	Tahoe	RST
2021-2023	Chevrolet	Tahoe	SSV
2021-2023	Chevrolet	Tahoe	Z71
2019-2021	GMC	Sierra 1500	AT4
2019-2021	GMC	Sierra 1500	Base
2019-2023	GMC	Sierra 1500	Denali
2019-2023	GMC	Sierra 1500	Elevation
2022-2023	GMC	Sierra 1500	Pro
2019-2023	GMC	Sierra 1500	SLE
2019-2023	GMC	Sierra 1500	SLT
2022	GMC	Sierra 1500 Limited	Denali
2022	GMC	Sierra 1500 Limited	Elevation
2022	GMC	Sierra 1500 Limited	Pro
2022	GMC	Sierra 1500 Limited	SLE
2022	GMC	Sierra 1500 Limited	SLT
2021-2023	GMC	Yukon	AT4
2021-2023	GMC	Yukon	SLE
2021-2023	GMC	Yukon	SLT
2021-2023	GMC	Yukon XL	AT4
2021-2023	GMC	Yukon XL	SLE
2021-2023	GMC	Yukon XL	SLT

Please note image may vary from product. Also, some items are special order. If delivery time is a concern, please contact us prior to purchase. 

MagnaFlow is known for producing high-performance exhaust systems. Founded in 1981, the company has earned a strong reputation in the aftermarket automotive world for creating exhaust products that improve both the sound and performance of vehicles. MagnaFlow offers a wide range of products, including cat-back exhaust systems, downpipes, mufflers, and headers, all designed to enhance engine performance by increasing exhaust flow and reducing backpressure.

One of the key features that set MagnaFlow apart is its use of stainless steel in the construction of their exhaust systems, which ensures durability and resistance to rust and corrosion. Their signature mufflers use a combination of straight-through and chambered designs, providing a deep, aggressive exhaust note while also reducing unwanted noise.

MagnaFlow’s exhaust systems are popular not only among car enthusiasts looking for a better driving experience but also among racers who need performance-oriented exhaust solutions. The company’s products are designed to be easy to install, with many offering bolt-on installation options for a hassle-free upgrade.

In addition to performance, MagnaFlow takes environmental responsibility seriously. Many of their exhaust systems feature high-flow catalytic converters, which help reduce harmful emissions without sacrificing performance. They also ensure their products comply with EPA standards, making them a legal choice for street use in many locations.

​Fidanza Performance, founded in 1997, is a leading US manufacturer of high-quality lightweight aluminum flywheels, precision adjustable cam gears, and high-performance clutches. With nearly 20 years in the automotive performance market, Fidanza is renowned for its expertise and respected globally, offering products for a wide range of vehicles, from European sports cars to modern muscle cars and imports. The company originated in racing, with founder Lou Fidanza's success in the SCCA leading to the creation of specialty parts like aluminum flywheels. Fidanza has since expanded its product line to include cam gears and performance clutches, gaining a loyal customer base and worldwide recognition. In 2023 Fidanza opened the SpeedParts4Less Marketplace which sells other manufacturers quality high performance parts!