The MagnaFlow 52373 is an OEM-grade, Federal/EPA-compliant direct-fit underbody catalytic converter for the driver side (Bank 2) of the 4.5L V8 Cayenne. It uses 16-gauge 409 stainless steel mandrel-bent tubing with a spun body that replicates the factory geometry, and a single laser fusion weld reduces leak points while the compact, low-mass design improves thermal efficiency. OE-style 410 stainless barbed hangers and 308 stainless MIG welds add durability, and the hardware needed for installation is included to avoid reusing corroded factory parts, for a bolt-in fit with no cutting or welding. It is emissions-legal on Federal/EPA vehicles in 49 states and is not legal for sale or use in California.
| Type | Direct-Fit Catalytic Converter (OEM Grade) |
| Position | Driver side (Bank 2), underbody |
| Material | 16-gauge 409 stainless steel |
| Emissions | Federal/EPA compliant (49-state, not legal in California) |
| Quantity | 1 |
| Part Number | 52373 |
| OEM Replacement | 955 113 023 AX, 955 113 023 00 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006 | Porsche | Cayenne | Base |
| 2004-2006 | Porsche | Cayenne | S |
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.
