MagnaFlow OEM-Grade Federal/EPA-compliant direct-fit underbody catalytic converter (21-554) for the 2013-2016 BMW 328i xDrive 2.0L, also fits the 2014-2016 BMW 428i xDrive and 328i GT xDrive. 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 the proper tools, no cutting or welding required. Hardware included. Meets Federal/EPA emissions standards for OBDII vehicles (not for sale in California).
| Type | Direct-fit catalytic converter (underbody) |
| Grade | OEM Grade |
| Material | 409 stainless steel (spun body) |
| Hardware | Hardware included |
| OEM Replacement | 18307633120 |
| Position | Underbody |
| Emissions | Federal/EPA compliant (not for CA) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2016 | BMW | 328i GT xDrive | Base |
| 2013-2016 | BMW | 328i xDrive | Base |
| 2014-2016 | BMW | 428i xDrive | Base |
| 2015-2016 | BMW | 428i xDrive Gran Coupe | Base |
