MagnaFlow Direct Fit Catalytic Converter

Jeep Grand Cherokee 99-01

Part #: 447191

Overview

The MagnaFlow Direct Fit Catalytic Converter 447191 is engineered specifically for the 1999 to 2001 Jeep Grand Cherokee Laredo and Limited models equipped with the 4.7L V8 engine. This California Grade CARB-compliant converter provides a reliable replacement that meets or exceeds stringent emissions standards, ensuring your vehicle remains street-legal in California and other CARB-restricted states. Designed to maintain factory emissions performance, it helps keep your check engine light off while preserving optimal engine efficiency and fuel economy.

Ideal for Jeep owners seeking a durable, high-quality catalytic converter that fits precisely without modification, this direct-fit unit simplifies installation and restores your vehicle’s emissions system to original specifications.

Key Features

MagnaFlow’s catalytic converter combines advanced engineering and premium materials to deliver dependable emissions control and long-lasting performance. Key features include:

• California Grade CARB Compliant, tested and approved for legal use in California and CARB-restricted states
• Direct-fit design tailored for 1999–2001 Jeep Grand Cherokee Laredo and Limited 4.7L V8 models
• Mandrel-bent tubing preserves OEM-like geometry for smooth exhaust flow and optimal engine operation
• Highly corrosion-resistant 16 gauge 409 stainless steel tubing for extended service life
• Replicated OE spun body design with a single laser fusion weld to minimize leak potential
• Compact, low-mass construction promotes quicker heat-up and improved catalytic efficiency
• Precision stamped collector design enhances exhaust flow and fuel economy
• OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel reduce noise and vibration
• Durable 308 stainless steel MIG welds ensure robust construction
• Includes essential gaskets and hardware for hassle-free installation

Construction & Design

Crafted from premium-grade materials, this catalytic converter features 16 gauge 409 stainless steel tubing known for its exceptional corrosion resistance and durability, ensuring long service life even under harsh conditions. The spun body design replicates the original equipment manufacturer’s specifications, guaranteeing a precise fit and reliable performance.

MagnaFlow utilizes advanced 3D scanning technology during development to achieve exact dimensions and optimized flow dynamics, maintaining factory-level exhaust efficiency. The single laser fusion weld on the spun body reduces the risk of leaks, while the compact, low-mass design allows the converter to heat up quickly, enhancing catalytic activity and emissions control.

Corrosion-resistant 410 stainless steel exhaust hangers help reduce noise and vibration, contributing to a smoother and quieter driving experience.

Installation & Fitment

This catalytic converter is a direct-fit replacement designed specifically for the 1999 to 2001 Jeep Grand Cherokee Laredo and Limited models with the 4.7L V8 engine. It directly interchanges with OEM part numbers 5210 1093AB and 5210 1200AA. Installation requires no cutting or welding, making it accessible for professional mechanics and knowledgeable DIY enthusiasts alike.

The package includes all necessary gaskets and hardware, eliminating the need to reuse corroded factory components and ensuring a secure, leak-free fit. Standard hand tools are sufficient for installation, streamlining the replacement process and reducing downtime.

What's Included

• MagnaFlow Direct-Fit Catalytic Converter 447191
• Essential gaskets for proper sealing
• Installation hardware to replace factory corroded parts

Ideal For

This catalytic converter is ideal for Jeep Grand Cherokee owners from model years 1999 through 2001 who require a dependable, CARB-compliant replacement part. It is perfect for those looking to maintain emissions compliance, restore factory performance, and prevent check engine light issues without complicated installation procedures. Suitable for both professional mechanics and experienced DIYers seeking a high-quality, direct-fit solution.

Emissions Note

MagnaFlow’s 447191 catalytic converter is California Air Resource Board (CARB) compliant and has undergone rigorous testing to meet or exceed CARB requirements. This ensures legal use in California and other CARB-restricted states for the specified Jeep Grand Cherokee models, providing peace of mind regarding emissions regulations and environmental standards.

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.