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The MagnaFlow 51578 is a direct-fit catalytic converter for OBDII vehicles with Federal/EPA emissions systems. It bolts on with the included crush-ring gasket and Torca clamp, with no cutting or welding. Mandrel-bent stainless steel tubing and a single laser-fusion weld keep flow high and leaks unlikely. It interchanges with OE parts 15905948, 19418941 and 20854454, so it suits owners replacing a failed factory converter who want an OE-style fit without fabrication.
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The MagnaFlow 51578 is an OEM grade, direct-fit catalytic converter. It is a replacement part designed to meet or exceed Federal emissions requirements set by the EPA. It complies with legal standards for OBDII Federally registered vehicles with California or Federal/EPA emission systems.
The converter is built from highly corrosion resistant stainless steel with free-flowing mandrel-bent tubing. A single laser fusion weld replicates the OE design and greatly reduces the possibility of a leak. The compact, low-mass design allows for greater thermal efficiency.
MagnaFlow develops the part using 3D scanning systems so it fits and functions like the original equipment. It installs with the proper tools and needs no cutting or welding.
