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The MagnaFlow 447226 is a CARB-compliant direct-fit rear catalytic converter for the 2000–2004 Toyota Tundra with the 3.4L V6. It bolts on in place of the factory rear converter using the included gaskets and hardware, with no cutting or welding. Its 308 stainless steel body and mandrel-bent tubing are built to resist corrosion, and the spun-body design with a single laser fusion weld is meant to match the OE part and reduce leak risk. It is the choice for Tundra owners in California and other CARB states who need a legal replacement; shoppers in non-CARB states can often spend less on a 49-state converter.
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Owners of the 2000–2004 Tundra 3.4L generally report that this converter bolts up like the factory part and clears the check engine light. Complaints center on the higher cost of a CARB-legal unit and on fitment being limited to the exact listed trucks.
This is a direct-fit catalytic converter for the rear position on 2000-2004 Toyota Tundra models with the 3.4L engine. It is a California-grade, CARB-compliant part with executive order number D-193-176. It is also New York certified. It interchanges with OE parts 17403-07021 and 17403-07022, among others.
The spun body copies the OE design and uses a single laser fusion weld. The tubing is 16 gauge 409 stainless steel, and the MIG welds are 308 stainless steel. Mandrel-bent tubing keeps the OEM-style geometry and exhaust flow. The OE-sized barbed hangers are 410 stainless steel and are designed to reduce noise and vibration.
It installs with the proper tools, and no cutting or welding is required. The compact, low-mass design allows for greater thermal efficiency.
