Magnaflow 2004 Ford F-150 5.4L Direct Fit Converter

MagnaFlow 5582706 is a CARB compliant direct-fit catalytic converter for the 2004 Ford F-150 5.4L that includes a Torca clamp in the box and interchanges with OE parts 4L3Z-5E212-CB and 4L3Z-5E212-CE. If your F-150 uses one of those OE part numbers, this is the replacement converter for that position in the exhaust system.

Construction follows MagnaFlow's standard approach for their California-grade converters: 16-gauge 409 stainless steel tubing with mandrel bends that match the OE pipe routing. The spun body design uses a single laser fusion weld to minimize leak risk at the converter shell, and 308 stainless steel MIG welds handle the pipe joints. MagnaFlow develops these converters using 3D scanning to replicate the factory geometry, so the flanges and pipe positions should align with the existing exhaust.

The included Torca clamp secures the pipe connection without welding. Installation is a bolt-on job with no cutting required. Hardware is included to avoid reusing corroded factory parts, which matters on a 2004 model year truck where the original hardware has been exposed to two decades of heat and road conditions. This converter is legal in all 50 states. Verify your vehicle's CARB EO match before proceeding.