The MagnaFlow OEM Grade manifold catalytic converter replaces the worn factory unit to restore proper emissions performance and keep the check engine light off. It is built from high-strength 16-gauge 409 stainless steel with mandrel-bent tubing that follows the OE flow path, and a spun OE-style body closed by a single laser fusion weld to reduce potential leak points. The close-coupled manifold design bolts to the cylinder head in the factory location. As an OEM Grade converter it meets Federal EPA emissions standards for 49-state (non-CARB) vehicles. Gaskets and mounting hardware are included for a bolt-on installation that needs no cutting or welding.
| Type | MagnaFlow OE-style manifold catalytic converter |
| Position | Primary (close-coupled manifold) |
| Grade | OEM Grade (Federal/EPA compliant, 49-state) |
| Material | 16-gauge 409 stainless steel |
| Quantity | 1 (sold individually) |
| OEM Replaces | 25051-20040 |
| Part Number | 49837 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2006 | Lexus | ES330 | Base |
| 2004-2006 | Lexus | RX330 | Base |
| 2004-2007 | Toyota | Highlander | Base |
| 2004-2007 | Toyota | Highlander | Limited |
| 2006-2007 | Toyota | Highlander | Sport |
| 2004-2006 | Toyota | Sienna | CE |
| 2004-2006 | Toyota | Sienna | LE |
| 2006 | Toyota | Sienna | Limited |
| 2004-2006 | Toyota | Sienna | XLE |
| 2004-2005 | Toyota | Sienna | XLE Limited |
