MagnaFlow CARB-grade California-compliant direct-fit catalytic converter (4551211) for the 2003-2005 Chevrolet Express 1500 and GMC Savana 1500 5.3L (plus additional GM vans listed below). The spun-body 409 stainless construction with a single laser-fusion weld replicates the OE design for smooth flow and a leak-resistant seal and installs with no cutting or welding. Includes gaskets and hardware. CARB EO compliant for legal use in California and CARB states.
| Type | Direct-fit catalytic converter |
| Grade | CARB Grade (California) |
| Material | 409 stainless steel (spun body) |
| Hardware | Includes gaskets and hardware |
| Emissions | CARB EO compliant (CA legal) |
Documents: Technical Bulletin (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2005 | Chevrolet | Express 1500 | Base |
| 2003-2005 | Chevrolet | Express 1500 | LS |
| 2003-2005 | Chevrolet | Express 2500 | Base |
| 2003-2005 | Chevrolet | Express 2500 | LS |
| 2003-2005 | GMC | Savana 1500 | Base |
| 2003-2005 | GMC | Savana 1500 | SLE |
| 2003-2005 | GMC | Savana 2500 | Base |
| 2004-2005 | GMC | Savana 2500 | SLE |
