MagnaFlow OEM Grade Direct Fit Catalytic Converter

2005–2014 Chrysler 300C / Dodge Challenger / Dodge Charger / Dodge Magnum 6.1L & 6.4L HEMI SRT8

Part #: 21-576

Overview

The MagnaFlow OEM Grade Direct Fit Catalytic Converter is engineered as a precise replacement for the factory catalytic converter on select Chrysler and Dodge SRT8 models. Designed to maintain your vehicle’s emissions compliance and engine performance, this converter offers a direct-fit solution that requires no cutting or welding. It is ideal for owners who want to restore factory-level emissions control with a durable, long-lasting component that fits perfectly and keeps your check engine light off.

Compatible with Chrysler 300C, Dodge Challenger, Charger, and Magnum models equipped with 6.1L and 6.4L HEMI engines from 2005 through 2014, this converter ensures your vehicle runs cleanly and efficiently while meeting Federal emissions standards.

Key Features

MagnaFlow’s direct-fit catalytic converter combines advanced manufacturing with premium materials to replicate original equipment performance and durability. Key features include:

• Federal/EPA compliant design for legal emissions on OBDII vehicles
• Mandrel-bent tubing that preserves OEM exhaust flow geometry for optimal fuel economy and performance
• Constructed from corrosion-resistant 16 gauge 409 stainless steel tubing for extended service life
• Spun body construction with a single laser fusion weld to minimize leaks and enhance durability
• Compact, low-mass design for improved thermal efficiency and faster catalyst light-off
• Includes all necessary hardware and gaskets for a hassle-free installation
• Precision 3D-scanned fitment ensures exact match to factory specifications
• Interchanges with OE parts 5039 055AF and 5039 055AA

Construction & Design

This catalytic converter is expertly crafted from high-strength 16 gauge 409 stainless steel tubing, chosen for its excellent resistance to corrosion and durability in harsh underbody environments. The mandrel-bent tubing maintains the original equipment manufacturer’s flow geometry, allowing exhaust gases to pass smoothly without restriction, which helps preserve engine efficiency.

The spun body design is laser fusion welded using 308 stainless steel MIG welds, creating a robust, leak-resistant seal that enhances longevity. MagnaFlow’s use of advanced 3D scanning technology during development guarantees that each converter matches the exact contours and dimensions of the factory part, providing a true direct-fit replacement that installs easily and performs reliably.

Installation & Fitment

This direct-fit catalytic converter is designed for straightforward installation using standard automotive tools. No cutting, welding, or modifications are required, making it an ideal replacement for both DIY enthusiasts and professional mechanics. The included gaskets and hardware simplify the installation process and help avoid common issues related to corroded or damaged factory components.

Fitment covers the following vehicles:

• Chrysler 300C SRT8 (2005–2010, 2012–2014)
• Chrysler 300 SRT8 Core (2013)
• Dodge Challenger SRT8 (2008–2014)
• Dodge Charger SRT8 (2006–2010, 2012–2014)
• Dodge Magnum SRT8 (2006–2008)

What's Included

• MagnaFlow OEM Grade Direct-Fit Catalytic Converter (Part #21-576)
• Essential gaskets for proper sealing
• Installation hardware to replace corroded factory parts

Ideal For

This catalytic converter is perfect for vehicle owners who require a reliable, EPA-compliant replacement that restores factory emissions control and maintains engine efficiency. It suits enthusiasts, mechanics, and fleet operators who prefer a direct-fit solution without the complexity of custom fabrication. If you own a Chrysler 300C, Dodge Challenger, Charger, or Magnum with a 6.1L or 6.4L HEMI engine from 2005 to 2014, this converter offers a durable and precise replacement option.

Emissions Note

This MagnaFlow catalytic converter meets or exceeds Federal emissions requirements set by the EPA. It is compliant with legal standards for OBDII federally registered vehicles equipped with California or Federal/EPA emission systems, ensuring your vehicle remains street-legal and environmentally responsible.

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.