MagnaFlow HM-Grade Federal/EPA-compliant direct-fit manifold catalytic converter (50291) for the 2006-2013 BMW 328i, 128i, 325i, 330i and X3/X5 3.0L, rear position. 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.
| Type | Direct-fit manifold catalytic converter |
| Grade | HM Grade |
| Material | 409 stainless steel (spun body) |
| Hardware | Gaskets and hardware included |
| OEM Replacement | 18307547840, 18407545309 |
| Position | Rear |
| Emissions | Federal/EPA compliant (not legal for sale in California) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2013 | BMW | 128i | Base |
| 2006 | BMW | 325i | Base |
| 2006 | BMW | 325xi | Base |
| 2007-2013 | BMW | 328i | Base |
| 2009-2013 | BMW | 328i xDrive | Base |
| 2007-2008 | BMW | 328xi | Base |
| 2006 | BMW | 330i | Base |
| 2006 | BMW | 330xi | Base |
| 2011-2012 | BMW | X3 | xDrive28i |
| 2011-2012 | BMW | X3 | xDrive35i |
| 2007-2008 | BMW | X5 | 3.0si |
| 2009-2010 | BMW | X5 | xDrive30i |
| 2009-2010 | BMW | X5 | xDrive35d |
