MagnaFlow Direct Fit Catalytic Converter

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

Part #: 51358

Overview

The MagnaFlow OEM Grade Direct-Fit Catalytic Converter 51358 is a precision-engineered replacement designed specifically for 2004 to 2007 Dodge Ram 2500 and Ram 3500 trucks equipped with the 5.7L HEMI engine. This catalytic converter ensures your vehicle maintains factory emissions standards, helping to keep your check engine light off and your engine running smoothly. It is an ideal solution for owners seeking a direct-fit, hassle-free upgrade that requires no cutting or welding during installation.

Built to meet or exceed EPA Federal emissions requirements, this converter provides a durable, long-lasting alternative to the original factory part. Whether you are performing routine maintenance or replacing a failing converter, the MagnaFlow 51358 delivers OEM-quality performance and peace of mind with its exact fit and superior construction.

Key Features

Designed with advanced manufacturing techniques and premium materials, this catalytic converter offers reliable emissions control and optimal exhaust flow. Key features include:

• Mandrel-bent tubing that preserves OEM-like exhaust flow dynamics and eliminates restrictions
• High-strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and durability
• Precision stamped collector design to optimize exhaust flow, engine efficiency, and fuel economy
• Durable 308 stainless steel MIG welds for long-lasting structural integrity and leak prevention
• Torca AccuSeal® exhaust clamps providing 360-degree clamping force to prevent pipe distortion and ensure a complete seal
• Includes all necessary hardware and gaskets to simplify installation and replace corroded factory parts
• Engineered using state-of-the-art 3D scanning technology for exact OEM fit and function
• Meets EPA Federal emissions standards for OBDII vehicles equipped with California or Federal/EPA emission systems

Construction & Design

The MagnaFlow catalytic converter is crafted with precision using mandrel-bent tubing that maintains the original equipment manufacturer’s design and geometry. Constructed from 16 gauge 409 stainless steel, it offers superior resistance to rust and corrosion, ensuring extended service life even under harsh operating conditions.

The collector is precision stamped to optimize exhaust flow, which helps maintain engine performance and fuel efficiency consistent with factory specifications. Welds are performed using durable 308 stainless steel MIG welding techniques, creating a robust, leak-free assembly. The included Torca AccuSeal® clamps enhance sealing capability while allowing for easier future serviceability without damaging exhaust pipes.

Installation & Fitment

This direct-fit catalytic converter is specifically designed for the following Dodge Ram models and trims from 2004 through 2007:

• Dodge Ram 2500 Laramie (2005–2007)
• Dodge Ram 2500 Power Wagon (2006–2007)
• Dodge Ram 2500 SLT (2004–2007)
• Dodge Ram 2500 Sport (2006–2007)
• Dodge Ram 2500 ST (2004–2007)
• Dodge Ram 2500 TRX4 (2006–2007)
• Dodge Ram 3500 Laramie (2004–2007)
• Dodge Ram 3500 SLT (2004–2007)
• Dodge Ram 3500 Sport (2006–2007)
• Dodge Ram 3500 ST (2004–2007)

Installation is straightforward and designed for the DIY enthusiast with the proper tools. Thanks to the direct-fit design and included hardware, no cutting or welding is required. The package includes all necessary gaskets and clamps, allowing for a secure, leak-free installation that replicates the original factory setup.

What's Included

• MagnaFlow OEM Grade Direct-Fit Catalytic Converter (Part #51358)
• Torca AccuSeal® Exhaust Clamps
• Installation gaskets
• Mounting hardware

Ideal For

This catalytic converter is ideal for Dodge Ram 2500 and 3500 owners who require a reliable, EPA-compliant replacement part that maintains factory emissions performance. It is perfect for those performing routine maintenance or replacing a damaged or failing catalytic converter without the need for custom modifications. The product suits both enthusiasts and professional mechanics seeking a durable, direct-fit solution that ensures long-term durability and compliance.

Emissions Note

The MagnaFlow catalytic converter meets or exceeds Federal emissions requirements and is compliant with EPA standards for OBDII federally registered vehicles. However, it is not legal for sale or installation in California, Colorado, or New York due to state-specific emissions regulations.

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.