The MagnaFlow California Grade direct-fit catalytic converter (4551773) replaces the converter on the 2001-2006 BMW X5 3.0i. Free-flowing mandrel-bent tubing and an OE-replicated spun body deliver factory-like flow and thermal efficiency, with a single laser-fusion weld to reduce leaks. Installs with no cutting or welding. Includes gaskets and hardware. CARB compliant and legal for use in California and CARB states for the listed vehicles.
| Type | Direct-fit catalytic converter (spun body) |
| Material | 409 stainless steel |
| Emissions | CARB compliant (50-state legal) |
| Includes | Gaskets & hardware |
| OEM Replacement | 18 40 7 514 499, 18 40 7 507 348 |
| Part Number | 4551773 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2006 | BMW | X5 | 3.0i |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
