The MagnaFlow OEM Grade direct-fit 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. 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 direct-fit catalytic converter |
| Position | Primary (front), driver side |
| Grade | OEM Grade (Federal/EPA compliant, 49-state) |
| Material | 16-gauge 409 stainless steel |
| Quantity | 1 (sold individually) |
| OEM Replaces | 4E0 254 501 AX, 4E0 254 501 X |
| Part Number | 51965 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005-2006 | Audi | A8 Quattro | Base |
| 2004-2006 | Audi | A8 Quattro | L |
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.
