Magnaflow Direct-Fit Catalytic Converter

Dodge Ram 2500 / Ram 3500 04-07 5.7L Hemi

Part #: 5451358

Overview

The Magnaflow California Grade Direct-Fit Catalytic Converter (Part #5451358) is engineered specifically for the 2005–2007 Dodge Ram 2500 and 2004–2007 Dodge Ram 3500 equipped with the 5.7L HEMI engine. This direct replacement catalytic converter ensures your vehicle maintains optimal emissions control while preventing common issues such as check engine lights caused by failing or faulty converters. Designed for durability and compliance, it offers a reliable solution for owners who want to keep their Dodge Ram running clean and efficiently.

Whether you are performing routine maintenance or replacing a damaged catalytic converter, this Magnaflow unit provides a hassle-free, direct-fit installation without the need for cutting or welding. It is an excellent choice for both professional mechanics and DIY enthusiasts seeking a high-quality, long-lasting emissions component.

Key Features

Magnaflow’s California Grade Direct-Fit Catalytic Converter combines advanced engineering with practical design to deliver superior performance and emissions compliance. Key features include:

• CARB-compliant design meeting or exceeding California Air Resources Board standards
• Direct-fit application tailored for 2005–2007 Dodge Ram 2500 and 2004–2007 Dodge Ram 3500 models
• Free-flowing mandrel-bent tubing that optimizes exhaust flow and reduces backpressure
• Highly corrosion-resistant stainless steel construction for enhanced durability and longevity
• Spun body design replicating original equipment for precise fit and function
• Single laser fusion weld to minimize leak potential and improve structural integrity
• Compact, low-mass design promoting greater thermal efficiency and quicker catalytic light-off
• Manufactured using advanced 3D scanning technology to ensure exact OEM specifications

Construction & Design

This catalytic converter is crafted from premium stainless steel, providing exceptional resistance to rust and corrosion even in harsh operating environments. The spun body construction mirrors the original equipment manufacturer’s design, ensuring a seamless fit and reliable performance that meets factory standards.

Magnaflow’s use of laser fusion welding creates a strong, leak-resistant seal that enhances the unit’s durability over time. The mandrel-bent tubing maintains a consistent diameter throughout bends, preventing flow restrictions and promoting efficient exhaust gas movement. This design supports emissions control while helping maintain engine performance and fuel efficiency.

Installation & Fitment

The Magnaflow Direct-Fit Catalytic Converter is designed for straightforward installation on the specified Dodge Ram models without requiring cutting, welding, or additional modifications. Its direct-fit nature allows it to bolt directly into place using existing hardware and mounting points, making it an ideal choice for both DIY enthusiasts and professional installers.

Proper tools and standard mechanical knowledge are recommended to ensure a secure and leak-free installation. This converter replaces the factory unit precisely, maintaining the integrity of your vehicle’s exhaust system and emissions controls.

What's Included

• Magnaflow California Grade Direct-Fit Catalytic Converter (Part #5451358)
• Pre-installed flanges and gaskets for direct installation
• Installation instructions

Ideal For

This catalytic converter is ideal for Dodge Ram 2500 and 3500 owners who require a reliable, CARB-compliant replacement part that ensures emissions compliance and prevents check engine light issues. It is well-suited for those performing routine maintenance, emissions repairs, or upgrades to maintain vehicle performance and legal operation in California and other CARB-regulated states.

Emissions Note

This product is CARB compliant and has undergone rigorous testing to meet California Air Resources Board standards. It is legal for use in California and other states that enforce CARB regulations for the specified Dodge Ram 2500 (2005–2007) and Dodge Ram 3500 (2004–2007) models, ensuring your vehicle remains environmentally responsible and street-legal.

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.