MagnaFlow OEM-Grade Federal/EPA-compliant direct-fit catalytic converter (51957) for the Volkswagen Touareg 2007-2010 3.6L and Audi Q7, fitting the rear position. Mandrel-bent 16-gauge 409 stainless tubing with a single laser-fusion weld replicates the OE design for smooth flow and a leak-resistant seal; it bolts in with no cutting or welding, and the necessary gaskets and hardware are included. Meets Federal/EPA emissions standards for OBDII Federally registered vehicles (not for sale in California).
Specifications
| Type | Direct-fit catalytic converter |
| Grade | OEM Grade |
| Material | 409 stainless steel |
| Hardware | Gaskets and mounting hardware included |
| OEM Replacement | 7L0 254 400 EX, 7L0 254 400 FX, 7L6 254 400 QX, 7L6 254 401 JX, 7L8 254 400 FX, 7L8 254 400 LX, 7L8 254 400 PX |
| Position | Rear |
| Emissions | Federal/EPA compliant (not for sale in California) |
| Part Number | 51957 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2010 | Audi | Q7 | Base |
| 2007-2010 | Audi | Q7 | Premium |
| 2007-2009 | Volkswagen | Touareg | Base |
| 2010 | Volkswagen | Touareg | VR6 |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
