MagnaFlow CARB-Grade California CARB-compliant direct-fit catalytic converter (5421710) for the 2006 Nissan Altima 3.5L and 2004 Nissan Maxima 3.5L. Spun-body 409 stainless construction with mandrel-bent tubing and a single laser-fusion weld replicates the OE design for smooth flow and a leak-resistant seal; installs with no cutting or welding, and includes one flange gasket and two crush-ring gaskets. Meets CARB requirements for legal use in California and CARB states.
| Type | Direct-fit catalytic converter |
| Grade | California Grade (CARB compliant) |
| Material | 409 stainless steel, spun body |
| Hardware | (1) flange gasket, (2) crush-ring gaskets |
| OEM Replacement | 20020-7Y000 / 20020-8Y000 / 20020-CK000 / 20020-CK600 / 20020-ZB720 / 20020-ZH90A |
| Emissions | CARB compliant — legal in California and CARB states |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006 | Nissan | Altima | SE |
| 2006 | Nissan | Altima | SE-R |
| 2006 | Nissan | Altima | SL |
| 2004 | Nissan | Maxima | SE |
| 2004 | Nissan | Maxima | SL |
