MagnaFlow CARB-Grade California-compliant direct-fit catalytic converter (458063) for the 2005-2006 Chevrolet Silverado 2500 HD 6.0L and 2006 GMC Sierra 2500 HD 6.0L. Spun-body 409 stainless steel construction with a single laser-fusion weld replicates the OE spun-body design for smooth flow and a leak-resistant seal; installs with no cutting or welding and includes gaskets and hardware. CARB EO compliant for legal use 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 |
| Position | Passenger side rear |
| Emissions | CARB EO compliant (CA legal) |
Documents: Technical Bulletin (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005 | Chevrolet | Silverado 2500 HD | Base |
| 2005-2006 | Chevrolet | Silverado 2500 HD | LS |
| 2005-2006 | Chevrolet | Silverado 2500 HD | LT |
| 2005-2006 | Chevrolet | Silverado 2500 HD | WT |
| 2006 | GMC | Sierra 2500 HD | SL |
| 2006 | GMC | Sierra 2500 HD | SLE |
| 2006 | GMC | Sierra 2500 HD | SLT |
| 2006 | GMC | Sierra 2500 HD | WT |
