MagnaFlow Catalytic Converter

Chrysler 300C / Dodge Magnum 05 5.7L Hemi

Part #: 4561243

Overview

The MagnaFlow California Grade Direct-Fit Catalytic Converter is a precision-engineered emissions solution designed specifically for the 2005 Chrysler 300 and Dodge Magnum equipped with the 5.7L HEMI engine. Built to meet or exceed California Air Resource Board (CARB) standards, this converter ensures your vehicle remains compliant with strict emissions regulations while maintaining optimal exhaust flow and performance. It is an ideal replacement for owners seeking a reliable, direct-fit part that prevents check engine light issues related to exhaust faults and supports smooth engine operation.

With a focus on durability and exact fitment, this catalytic converter offers an effortless installation experience without the need for cutting or welding. It is also compatible with several original equipment (OE) part numbers, making it a versatile and dependable choice for maintaining your vehicle’s emissions system integrity.

Key Features

MagnaFlow’s direct-fit catalytic converter combines advanced manufacturing techniques and premium materials to deliver a high-quality emissions control component. Key features include:

• CARB-compliant design certified for legal use in California and other CARB-restricted states
• Direct-fit replacement requiring no cutting, welding, or modifications for easy installation
• Free-flowing mandrel-bent tubing that optimizes exhaust flow and reduces backpressure
• Highly corrosion-resistant stainless steel construction for long-lasting durability
• Spun body design replicating original equipment for precise fit and function
• Single laser fusion weld to minimize leak potential and enhance structural integrity
• Compact, low-mass design promoting greater thermal efficiency and faster catalyst light-off
• Developed using state-of-the-art 3D scanning technology for exact OE fitment

Construction & Design

This catalytic converter features a robust stainless steel body engineered to resist rust and corrosion, ensuring longevity even under demanding driving conditions. The spun body construction mirrors the original equipment manufacturer’s design, providing a seamless fit within the vehicle’s exhaust system and maintaining factory-level performance.

The single laser fusion weld enhances the unit’s structural integrity while reducing the risk of exhaust leaks that can trigger diagnostic trouble codes. Mandrel-bent tubing maintains a consistent diameter through bends, promoting unrestricted exhaust flow and reducing backpressure. This design improves thermal efficiency, allowing the converter to reach optimal operating temperatures quickly and maintain effective emissions control.

Installation & Fitment

Designed specifically for the 2005 Chrysler 300 and Dodge Magnum 5.7L HEMI RWD models, this direct-fit catalytic converter installs easily without the need for cutting, welding, or additional modifications. Installation can be completed using standard automotive tools, making it accessible for both professional mechanics and experienced DIY enthusiasts. Its compatibility with multiple OE part numbers adds flexibility for related vehicle applications.

What's Included

• One MagnaFlow California Grade Direct-Fit Catalytic Converter (Part #4561243)
• Installation hardware not included – standard tools required

Ideal For

This catalytic converter is ideal for owners of 2005 Chrysler 300 and Dodge Magnum vehicles equipped with the 5.7L HEMI engine who require a CARB-compliant replacement part. It is perfect for those looking to maintain emissions compliance in California and other CARB-regulated states without compromising on build quality, fitment accuracy, or ease of installation.

Emissions Note

This product is CARB compliant and has undergone rigorous testing to meet California Air Resource Board standards. It is legal for use in California and other CARB-restricted states on the specified vehicle applications, ensuring your vehicle remains emissions-legal and environmentally responsible.

MagnaFlow is a performance exhaust manufacturer best known for cat‑back and axle‑back systems, mufflers, and catalytic converters engineered for quality sound and improved flow. Their vehicle-specific exhaust options span muscle, import, and truck applications—making MagnaFlow a staple upgrade when you want a deeper tone, cleaner fitment, and a proven performance-focused exhaust setup.