Magnaflow Catalytic Converter

1997–2006 Jeep Wrangler TJ 4.0L I6

Part #: 447188

Overview

The Magnaflow California Grade direct-fit catalytic converter is engineered specifically for Jeep Wrangler TJ models equipped with the 4.0L inline-six engine from 1997 through 2006. Designed as a direct replacement for the factory catalytic converter, this unit ensures optimal exhaust flow while maintaining strict emissions compliance. It is an excellent choice for Jeep owners who want a reliable, durable converter that preserves factory fuel efficiency and engine performance without triggering check engine lights.

Whether you are restoring your Wrangler’s exhaust system or upgrading from a worn or damaged converter, this Magnaflow catalytic converter offers a seamless fit and dependable operation. It replicates the original equipment manufacturer (OEM) flow characteristics to maintain smooth engine management system compatibility and consistent performance.

Key Features

This catalytic converter combines advanced engineering with high-quality materials to deliver long-lasting performance and emissions compliance. Key features include:

• Direct-fit design tailored specifically for 1997–2006 Jeep Wrangler TJ 4.0L I6 models
• California Grade emissions compliance for legal street use in states with strict regulations
• Constructed from corrosion-resistant stainless steel for enhanced durability and rust prevention
• Mandrel-bent tubing maintains smooth exhaust flow and minimizes restrictions
• Replicates OEM flow dynamics to preserve factory fuel economy and engine performance
• Helps prevent check engine light activation related to emissions system faults
• Designed to withstand harsh road conditions and weather exposure
• Compatible with stock exhaust systems for straightforward, no-modification installation

Construction & Design

Built with premium stainless steel, this Magnaflow catalytic converter resists rust and corrosion, ensuring a long service life even under demanding driving conditions. The mandrel-bent tubing preserves the internal diameter through bends, reducing exhaust flow restrictions and maximizing engine efficiency. Inside, the catalytic substrate is engineered to optimize chemical reactions that reduce harmful emissions while maintaining engine performance.

Magnaflow’s commitment to quality is evident in the precise fitment and robust construction of this converter, providing Jeep Wrangler owners with a dependable replacement that meets or exceeds OEM standards.

Installation & Fitment

This catalytic converter is designed as a direct replacement for the factory unit on Jeep Wrangler TJ models from 1997 through 2006 with the 4.0L inline-six engine. Installation is straightforward and requires no cutting, welding, or additional modifications, making it suitable for both professional mechanics and experienced DIY enthusiasts. It fits seamlessly into the existing exhaust system, ensuring proper alignment and secure attachment.

What's Included

• One Magnaflow California Grade direct-fit catalytic converter
• All necessary hardware for installation (if applicable)
• Installation instructions

Ideal For

This catalytic converter is ideal for Jeep Wrangler TJ owners who need a reliable, emissions-compliant replacement part that maintains factory performance and fuel economy. It is well suited for those restoring their vehicle’s exhaust system or upgrading from a worn or damaged converter without compromising emissions standards or engine operation.

Emissions Note

This Magnaflow catalytic converter is CARB-compliant and meets California emissions standards, making it legal for street use in states that enforce strict emissions regulations. It is designed to replicate OEM flow dynamics to maintain proper engine function and avoid check engine light issues related to emissions control.

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.