The MagnaFlow OEM-grade direct-fit catalytic converter (21-501) replaces the underbody converter on the 2014-2017 Mercedes-Benz S550 and 2017 Maybach S550 4.6L V8. Free-flowing mandrel-bent tubing and a spun stainless body replicate the OE design for factory-like flow and thermal efficiency, and it installs with no cutting or welding. Includes gaskets and hardware. Federal/EPA compliant - not legal for sale or use on pollution-controlled vehicles registered in California.
| Type | OEM-grade direct-fit catalytic converter |
| Position | Underbody |
| Material | 409 stainless steel |
| Emissions | Federal/EPA compliant (not CARB/California legal) |
| Includes | Gaskets & hardware |
| OEM Replacement | 222 490 69 10, 222 490 47 10 |
| Part Number | 21-501 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017 | Mercedes-Benz | Maybach S550 | 4Matic |
| 2014-2017 | Mercedes-Benz | S550 | 4Matic |
| 2014-2017 | Mercedes-Benz | S550 | Base |
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.
