Magnaflow Direct-Fit Catalytic Converter

2004–2005 Dodge Ram 1500 5.7L

Part #: 4651597

Overview

The Magnaflow Direct-Fit Catalytic Converter is a precision-engineered replacement part designed specifically for the 2004 to 2005 Dodge Ram 1500 equipped with the 5.7L engine. This catalytic converter ensures your truck remains compliant with emissions regulations while maintaining optimal exhaust flow and engine performance. It is an ideal solution for Dodge Ram owners seeking a reliable, hassle-free replacement that fits perfectly without modifications.

Manufactured to meet or exceed California Air Resource Board (CARB) standards, this converter helps keep your check engine light off and supports your vehicle’s environmental responsibilities. With Magnaflow’s reputation for quality and durability, this catalytic converter offers a long-lasting, OEM-quality component that integrates seamlessly into your Ram’s exhaust system.

Key Features

Engineered to deliver both compliance and performance, this direct-fit catalytic converter includes the following key features:

• CARB-compliant design for legal use in California and other CARB-restricted states
• Free-flowing mandrel-bent tubing to maximize exhaust efficiency and reduce flow restrictions
• Highly corrosion-resistant stainless steel construction for extended durability
• Spun body design replicates original equipment for a precise fit and reliable function
• Single laser fusion weld minimizes leak potential and enhances structural integrity
• Compact, low-mass design promotes greater thermal efficiency
• Manufactured using advanced 3D scanning technology for exact fitment
• Direct replacement for OE parts 5536 6326AC and 5536 6326AB

Construction & Design

Magnaflow’s catalytic converter is built with premium stainless steel that resists rust and corrosion, ensuring longevity even under demanding driving conditions. The mandrel-bent tubing maintains a consistent diameter through bends, reducing exhaust flow restrictions and improving overall efficiency. The spun body design is precisely replicated from original equipment using state-of-the-art 3D scanning metrology, guaranteeing a seamless fit and dependable performance.

The single laser fusion weld strengthens the assembly while minimizing the risk of exhaust leaks, which can negatively impact emissions and engine operation. This thoughtful engineering results in a compact, thermally efficient converter that integrates smoothly into your Dodge Ram’s exhaust system.

Installation & Fitment

This catalytic converter is designed for a direct bolt-on installation with no cutting, welding, or modifications required when installed with the proper tools. Its precise fitment ensures a straightforward replacement process, saving time and effort for both professional mechanics and experienced DIY enthusiasts. It is tailored exclusively for the 2004–2005 Dodge Ram 1500 5.7L, maintaining factory performance standards and emissions compliance.

What's Included

• One Magnaflow California Grade Direct-Fit Catalytic Converter (Part #4651597)

Ideal For

This catalytic converter is ideal for Dodge Ram 1500 owners from model years 2004 and 2005 who require a durable, CARB-compliant replacement to restore emissions control and maintain vehicle legality. It suits drivers looking for an OEM-quality component that supports environmental standards without sacrificing performance or requiring complex installation.

Emissions Note

This product is designed to meet or exceed California Air Resource Board (CARB) requirements and has undergone rigorous testing to comply with CARB guidelines. It is legal for use in California and other CARB-restricted states on the specified vehicle applications, ensuring your Dodge Ram 1500 remains compliant with state 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.