MagnaFlow 458063 Catalytic Converter - Right

Direct-Fit CARB Catalytic Converter

MagnaFlow catalytic converter 458063 is a direct-fit replacement built for specific Chevrolet and GMC heavy-duty applications. It uses stainless steel construction, a ceramic substrate, and OE-style spun body design to support proper exhaust flow and sealing.

• Direct-fit design for specific applications
• Stainless steel tube and body construction
• Ceramic substrate for emissions control
• Mandrel-bent tubing for freer exhaust flow
• Pre and post converter oxygen sensor locations

Fitment and Application

Fits 2005 Chevrolet Silverado 2500 HD, right. Fits 2006 Chevrolet Silverado 2500 HD, right. Fits 2006 GMC Sierra 2500 HD, right. This MagnaFlow 458063 is a California Grade CARB-compliant converter for listed vehicles, with a bolt-on inlet and clamp-on outlet for direct replacement service.

The Direct-Fit CALIFORNIA OBDII CONVERTERS line is engineered for application-specific exhaust replacement. MagnaFlow uses 3D scanning during development to match original equipment fit and function, and the spun body design with a single laser fusion weld helps reduce leak points. The compact, low-mass layout also supports thermal efficiency in the exhaust system.

Common Repair Uses

• Check engine light concerns related to catalyst efficiency
• Exhaust leaks at the converter connection points
• Corroded factory converter assemblies
• Emissions compliance issues on listed applications
• Fitment problems from worn or damaged OE exhaust parts

Installation Notes

Install with the proper tools using the direct-fit configuration; no cutting or welding is required. The included gaskets and hardware help reduce the chance of a leaking seal and avoid reusing corroded factory parts. Verify oxygen sensor placement, inlet and outlet style, and vehicle application before installation.

Quality Assurance

MagnaFlow 458063 is built to meet or exceed California Air Resources Board requirements and has undergone additional testing for CARB compliance on the listed vehicles. The part is developed with 3D scanning and OE-style design replication to support accurate fit and function.