MagnaFlow HM-Grade Federal/EPA-compliant direct-fit catalytic converter (50401) for the 2004-2005 BMW 545i, 645Ci, 745i and 745Li, passenger side. Spun-body 409 stainless construction with mandrel-bent tubing and a single laser-fusion weld replicates the OE design for smooth flow and a leak-resistant seal; installs with no cutting or welding, includes gaskets and hardware. Federal/EPA compliant for OBDII vehicles — not legal for sale in California.
Specifications
| Type | Direct-fit catalytic converter |
| Grade | HM Grade |
| Material | 409 stainless steel (spun body) |
| Hardware | Gaskets and hardware included |
| OEM Replacement | 18407522554, 18407522570 |
| Position | Passenger side |
| Emissions | Federal/EPA compliant (not legal for sale in California) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2005 | BMW | 545i | Base |
| 2004-2005 | BMW | 645Ci | Base |
| 2004-2005 | BMW | 745i | Base |
| 2004-2005 | BMW | 745Li | Base |
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