MagnaFlow Catalytic Converter

2002–2003 Dodge Durango 5.9L V8

Part #: 458048

Overview

The MagnaFlow Catalytic Converter 458048 is a direct-fit replacement designed specifically for the 2002 and 2003 Dodge Durango equipped with the 5.9L V8 Magnum engine and rear-wheel drive. This high-quality catalytic converter is engineered to restore your vehicle’s emissions control system to factory standards, helping to keep your check engine light off and ensuring compliance with strict environmental regulations.

Ideal for Durango owners facing a failing or clogged factory converter, or those seeking a durable aftermarket upgrade, this MagnaFlow converter offers a seamless installation experience without the need for modifications. Its California Air Resources Board (CARB) compliance guarantees legal use in California and other CARB-restricted states, providing peace of mind alongside reliable performance.

Key Features

MagnaFlow’s catalytic converter combines advanced manufacturing techniques with premium materials to deliver a durable and efficient emissions control solution. Key features include:

• Direct-fit design tailored specifically for 2002–2003 Dodge Durango 5.9L V8 Magnum RWD models
• California Grade CARB compliant for legal use in California and other CARB states
• Free-flowing mandrel-bent tubing to maximize exhaust flow and reduce 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 improved thermal efficiency
• Manufactured using advanced 3D scanning technology for exact OE specifications

Construction & Design

This catalytic converter is crafted from premium stainless steel, chosen for its exceptional resistance to rust and corrosion, ensuring longevity even under harsh operating conditions. The spun body construction mirrors the original equipment design, providing a perfect fit and reliable sealing to prevent exhaust leaks.

MagnaFlow employs laser fusion welding to create a strong, leak-resistant joint that withstands thermal expansion and vibration common in exhaust systems. The mandrel-bent tubing maintains a consistent diameter throughout bends, preventing flow restrictions and preserving exhaust velocity for optimal engine performance.

Attention to detail in both design and materials results in a converter that meets or exceeds OEM standards for durability and emissions control.

Installation & Fitment

Designed as a direct-fit replacement, this MagnaFlow catalytic converter installs easily using standard automotive tools. No cutting, welding, or additional modifications are required, making it an excellent choice for both DIY enthusiasts and professional mechanics. The precise fitment ensures a straightforward swap with your vehicle’s existing exhaust system, minimizing installation time and effort.

This part is specifically engineered for the 2002 and 2003 Dodge Durango 5.9L V8 Magnum RWD, guaranteeing compatibility and proper operation with the factory exhaust layout.

What's Included

• One MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter (Part #458048)

Ideal For

This catalytic converter is ideal for Dodge Durango owners from model years 2002 and 2003 who need a reliable replacement to restore emissions compliance and maintain engine performance. It is suited for vehicles with failing or damaged factory converters and those requiring a CARB-compliant upgrade for legal road use in California and other states with strict emissions regulations.

Emissions Note

MagnaFlow’s catalytic converter 458048 is California Air Resources Board (CARB) compliant and meets or exceeds California emissions standards. It has undergone rigorous testing to ensure legal use in California and other CARB-restricted states for the listed Dodge Durango models. Installing this converter helps maintain your vehicle’s emissions compliance and avoid costly fines or failed inspections.

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.