MagnaFlow's California Grade converter is a CARB compliant direct-fit replacement for the rear left converter and bolts into the factory location without cutting or welding. The clam-shell stainless body carries an attached aluminized steel heat shield over a ceramic substrate, with 16 gauge 409 stainless steel tubing and 308 stainless steel MIG welds. Overall length is 23.75 in with flange inlet and outlet connections and one pre converter oxygen sensor port. A crush ring gasket and a flange gasket are included, and CARB Executive Order D-193-176 makes it legal in all 50 states.
Specifications
| Type | California Grade CARB compliant direct-fit catalytic converter |
| Position | Rear left (driver side) |
| Material | 16 gauge 409 stainless steel tubing, 308 stainless steel MIG welds |
| Body | Clam-shell stainless with attached aluminized steel heat shield |
| Substrate | Ceramic |
| Overall Length | 23.75 in |
| Inlet / Outlet | Flange / flange |
| Oxygen Sensor Ports | 1 (pre converter) |
| Emissions | CARB compliant, Executive Order D-193-176; New York certified; legal in all 50 states |
| Included Hardware | (1) crush ring gasket, (1) flange gasket |
| Quantity | 1 |
| OEM Replacement | 14006-4W001, 20020-5W000, 20020-5W500, 20020-5W510 |
| Part Number | 447227 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2002 | INFINITI | QX4 | Base |
| 2001-2004 | Nissan | Pathfinder | LE |
| 2001-2004 | Nissan | Pathfinder | SE |
| 2001 | Nissan | Pathfinder | XE |
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
