MagnaFlow CARB-Grade California-compliant direct-fit catalytic converter (5421911) for the 2012-2016 Buick LaCrosse 2.4L (also fits the Buick Regal and Chevrolet Malibu/Impala). Spun-body / mandrel-bent 409 stainless tubing 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. CARB compliant and legal in California and CARB states.
| Type | Direct-fit catalytic converter |
| Grade | California Grade (CARB) |
| Material | 409 stainless steel (spun body) |
| Hardware | Gaskets included |
| Emissions | CARB compliant (CA legal) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2012-2016 | Buick | LaCrosse | Base |
| 2012 | Buick | LaCrosse | Convenience |
| 2012-2016 | Buick | LaCrosse | Leather |
| 2012 | Buick | LaCrosse | Premium |
| 2012-2015 | Buick | Regal | Base |
| 2012-2015 | Buick | Regal | Premium |
| 2014 | Chevrolet | Impala | Eco |
| 2013-2014 | Chevrolet | Malibu | Eco |
