MagnaFlow CARB-Grade California-compliant direct-fit catalytic converter (4451211) for the 2003-2006 Chevrolet Express 1500 4.3L (also fits GMC Savana 1500 and Express/Savana 2500). Spun-body 409 stainless construction with 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 gaskets and hardware. CARB EO compliant, legal in California and CARB states.
| Type | Direct-fit catalytic converter |
| Grade | CARB (California) Grade |
| Material | 409 stainless steel (spun body) |
| Hardware | Gaskets and hardware included |
| Emissions | CARB EO compliant (CA legal) |
Documents: Technical Bulletin (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003,2006 | Chevrolet | Express 1500 | Base |
| 2003,2006 | Chevrolet | Express 1500 | LS |
| 2006 | Chevrolet | Express 1500 | LT |
| 2003,2005 | Chevrolet | Express 2500 | Base |
| 2003,2005 | Chevrolet | Express 2500 | LS |
| 2003,2006 | GMC | Savana 1500 | Base |
| 2006 | GMC | Savana 1500 | LS |
| 2006 | GMC | Savana 1500 | LT |
| 2003 | GMC | Savana 1500 | SLE |
| 2003 | GMC | Savana 2500 | Base |
| 2003 | GMC | Savana 2500 | SLE |
