MagnaFlow's California Grade Direct-Fit Catalytic Converter 4551642 is a CARB-compliant emissions replacement that installs in the driver-side position with no cutting or welding required. It uses a spun body with a single laser fusion weld to reduce leak points, high-strength 16 gauge 409 stainless steel tubing, 410 stainless barbed hangers, and 308 stainless MIG welds for long service life. The converter carries CARB Executive Order D-193-184 and is legal for sale and installation in all 50 states, and the necessary gaskets and hardware are included.
| Type | Direct-Fit Catalytic Converter (California Grade CARB Compliant) |
| Position | Driver Side |
| Material | 409 Stainless Steel (16 Gauge) |
| Emissions | CARB Compliant, EO# D-193-184 (legal for sale in all 50 states) |
| Part Number | 4551642 |
Documents: Technical Bulletin (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003 | Chevrolet | Silverado 2500 HD | Base |
| 2003,2006 | Chevrolet | Silverado 2500 HD | LS |
| 2003,2006 | Chevrolet | Silverado 2500 HD | LT |
| 2003,2006 | Chevrolet | Silverado 2500 HD | WT |
| 2007 | Chevrolet | Silverado 2500 HD Classic | LS |
| 2007 | Chevrolet | Silverado 2500 HD Classic | LT |
| 2007 | Chevrolet | Silverado 2500 HD Classic | WT |
| 2003 | Chevrolet | Silverado 3500 | Base |
| 2003,2006 | Chevrolet | Silverado 3500 | LS |
| 2003,2006 | Chevrolet | Silverado 3500 | LT |
| 2006 | Chevrolet | Silverado 3500 | WT |
| 2007 | Chevrolet | Silverado 3500 Classic | LS |
| 2007 | Chevrolet | Silverado 3500 Classic | LT |
| 2007 | Chevrolet | Silverado 3500 Classic | WT |
| 2003 | GMC | Sierra 2500 HD | Base |
| 2006 | GMC | Sierra 2500 HD | SL |
| 2003,2006 | GMC | Sierra 2500 HD | SLE |
| 2003,2006 | GMC | Sierra 2500 HD | SLT |
| 2003,2006 | GMC | Sierra 2500 HD | WT |
| 2007 | GMC | Sierra 2500 HD Classic | SL |
| 2007 | GMC | Sierra 2500 HD Classic | SLE |
| 2007 | GMC | Sierra 2500 HD Classic | SLT |
| 2007 | GMC | Sierra 2500 HD Classic | WT |
| 2003 | GMC | Sierra 3500 | Base |
| 2006 | GMC | Sierra 3500 | SL |
| 2003,2006 | GMC | Sierra 3500 | SLE |
| 2003,2006 | GMC | Sierra 3500 | SLT |
| 2006 | GMC | Sierra 3500 | WT |
| 2007 | GMC | Sierra 3500 Classic | SL |
| 2007 | GMC | Sierra 3500 Classic | SLE |
| 2007 | GMC | Sierra 3500 Classic | SLT |
| 2007 | GMC | Sierra 3500 Classic | WT |
