MagnaFlow OEM-Grade California CARB-compliant direct-fit catalytic converter (280424) for the 2014-2015 Chevrolet Silverado 1500 4.3L. 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. CARB-compliant — legal in California and CARB states.
| Type | Direct-fit catalytic converter |
| Grade | OEM Grade |
| Material | 409 stainless steel (spun body) |
| Position | Underbody |
| OEM Replacement | 20757674 |
| Emissions | CARB compliant (California legal) |
Documents: Technical Bulletin (PDF) | Technical Bulletin (PDF) | Technical Bulletin (PDF) | Technical Bulletin (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2014-2015 | Chevrolet | Silverado 1500 | High Country |
| 2015 | Chevrolet | Silverado 1500 | LS |
| 2014-2015 | Chevrolet | Silverado 1500 | LT |
| 2014-2015 | Chevrolet | Silverado 1500 | LTZ |
| 2015 | Chevrolet | Silverado 1500 | SSV |
| 2014-2015 | Chevrolet | Silverado 1500 | WT |
| 2015 | Chevrolet | Suburban | LS |
| 2015 | Chevrolet | Suburban | LT |
| 2015 | Chevrolet | Suburban | LTZ |
| 2015 | Chevrolet | Tahoe | LS |
| 2015 | Chevrolet | Tahoe | LT |
| 2015 | Chevrolet | Tahoe | LTZ |
| 2015 | Chevrolet | Tahoe | PPV |
| 2015 | Chevrolet | Tahoe | SSV |
| 2014-2015 | GMC | Sierra 1500 | Base |
| 2014-2015 | GMC | Sierra 1500 | Denali |
| 2014-2015 | GMC | Sierra 1500 | SLE |
| 2014-2015 | GMC | Sierra 1500 | SLT |
| 2015 | GMC | Yukon | SLE |
| 2015 | GMC | Yukon | SLT |
| 2015 | GMC | Yukon XL | SLE |
| 2015 | GMC | Yukon XL | SLT |
