Magnaflow Direct Fit Catalytic Converter

2005–2006 Jeep Grand Cherokee / 2006–2007 Jeep Commander 3.7L V6

Part #: 5451687

Overview

The Magnaflow Direct Fit Catalytic Converter 5451687 is a precision-engineered replacement designed specifically for the 2005–2006 Jeep Grand Cherokee and 2006–2007 Jeep Commander equipped with the 3.7L V6 engine. This catalytic converter restores your vehicle’s emissions control system to factory standards, ensuring optimal engine performance while keeping your check engine light off. It is an ideal solution for Jeep owners seeking a reliable, California Air Resource Board (CARB) compliant part that meets strict emissions regulations without sacrificing exhaust flow or fuel economy.

Built to deliver a seamless fit and function, this converter simplifies installation with a direct-fit design that requires no cutting or welding. Whether replacing a failing OEM converter or upgrading to a high-quality aftermarket component, Magnaflow provides a durable and efficient product that maintains your vehicle’s environmental compliance and engine efficiency.

Key Features

Magnaflow’s Direct Fit Catalytic Converter combines advanced materials and engineering to ensure long-lasting performance and emissions compliance. Key features include:

• California CARB compliant, meeting or exceeding emissions standards for legal use in California and CARB-restricted states
• Mandrel-bent tubing designed to preserve OEM exhaust flow and geometry for optimal fuel economy and engine performance
• Constructed from corrosion-resistant 16 gauge 409 stainless steel tubing for enhanced durability and longevity
• OE-sized barbed exhaust hangers made from 410 stainless steel to reduce noise, vibration, and rust
• Single laser fusion weld on the spun body design to minimize leak potential and improve thermal efficiency
• Precision stamped collector optimized for smooth exhaust flow and efficient emissions control
• Torca AccuSeal® exhaust clamps providing 360-degree clamping force to prevent pipe distortion and ensure a secure seal
• Includes essential gaskets and hardware to simplify installation and replace corroded factory components
• Manufactured using advanced 3D scanning technology to replicate OE fit and function accurately

Construction & Design

This catalytic converter features a spun body design crafted from high-strength 16 gauge 409 stainless steel tubing, selected for its excellent corrosion resistance and durability under demanding conditions. The compact, low-mass construction enhances thermal efficiency, allowing the converter to reach optimal operating temperatures quickly and maintain effective emissions control.

Magnaflow employs single laser fusion welds on the spun body to reduce leak risks, while mandrel-bent tubing preserves the original equipment manufacturer’s flow characteristics. The OE-sized barbed exhaust hangers are fabricated from 410 stainless steel, providing superior resistance to rust and vibration, which contributes to quieter operation and extended service life.

Installation & Fitment

The Magnaflow Direct Fit Catalytic Converter installs easily with no cutting or welding required. It fits directly onto the exhaust system of 2005–2006 Jeep Grand Cherokee and 2006–2007 Jeep Commander models, including the 65th Anniversary Edition and Sport trims. The included hardware and gaskets eliminate the hassle of dealing with corroded or damaged factory parts, making the replacement process faster and more reliable.

Thanks to precise 3D scanning and engineering, this converter replicates the original equipment’s fit and function, ensuring a secure, leak-free installation that maintains factory performance standards.

What's Included

• Magnaflow Direct Fit Catalytic Converter (Part #5451687)
• Essential gaskets for proper sealing
• Torca AccuSeal® exhaust clamps for secure attachment
• Installation hardware to replace corroded factory parts

Ideal For

This catalytic converter is perfect for Jeep owners who require a dependable, CARB-compliant replacement part that preserves factory emissions standards and engine performance. It is well suited for those looking to restore their vehicle’s exhaust system without the need for custom modifications, ensuring legal compliance in California and other states with strict emissions regulations.

Emissions Note

Magnaflow’s Direct Fit Catalytic Converter 5451687 is California Air Resource Board (CARB) compliant and has undergone rigorous testing to meet or exceed CARB guidelines. This certification guarantees legal use in California and other CARB-regulated states for the specified Jeep Grand Cherokee and Commander models.

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.