Flowmaster American Thunder Exhaust System

2011–2014 Chrysler 300, 2011–2014 Dodge Charger 5.7L Hemi

Part #: 817508

Overview

The Flowmaster American Thunder Exhaust System is engineered for enthusiasts who demand a bold and aggressive exhaust note without sacrificing everyday drivability. Designed specifically for the 2011 to 2014 Chrysler 300 and Dodge Charger equipped with the 5.7L Hemi engine, this exhaust system delivers a perfect balance of performance and sound. It enhances your vehicle’s throttle response and power output while providing a distinctive exterior tone that commands attention on the road.

Whether you’re looking to upgrade your factory exhaust for improved efficiency or a more commanding presence, the American Thunder system offers a direct-fit solution that integrates seamlessly with your vehicle’s existing components.

Key Features

This exhaust system combines quality materials and thoughtful engineering to deliver a superior driving experience. Key features include:

• Mandrel-bent 16-gauge stainless steel tubing for optimal flow and durability
• Aggressive exterior sound with a moderate, refined interior tone
• Connects directly after the factory catalytic converter for a bolt-on installation
• Utilizes factory hanger locations to ensure a secure and proper fit
• Improves throttle response, power delivery, and overall engine efficiency
• Includes all necessary hangers and installation hardware for a hassle-free setup
• Designed specifically for the 5.7L Hemi engine in Chrysler 300 and Dodge Charger models from 2011 to 2014

Construction & Design

The Flowmaster American Thunder Exhaust System is constructed from premium 16-gauge stainless steel tubing that is mandrel-bent to maintain consistent diameter and maximize exhaust flow. This precision bending reduces restrictions and turbulence, contributing to improved engine performance. The stainless steel material offers excellent corrosion resistance, ensuring long-lasting durability and a clean appearance over time.

Specially selected mufflers are integrated into the design to produce the signature American Thunder sound—a deep, aggressive exhaust note that is powerful yet controlled. The system’s direct-fit design means it aligns perfectly with factory mounting points and exhaust components, minimizing installation complexity and eliminating the need for cutting or welding.

Performance & Sound

The American Thunder system enhances your vehicle’s performance by improving exhaust flow, which in turn helps increase throttle response and engine efficiency. The exhaust tone is carefully tuned to provide a moderate to aggressive sound profile that is assertive on the outside while maintaining a comfortable interior noise level. This balance makes it ideal for daily driving as well as spirited performance outings.

Installation & Fitment

Installation is straightforward with this direct-fit exhaust system. It connects immediately after the factory catalytic converter and uses the existing hanger locations, allowing for a seamless bolt-on replacement of the factory exhaust components. All required hardware and hangers are included, enabling at-home enthusiasts to complete the installation without specialized tools or modifications.

This system is specifically designed to fit 2011 through 2014 Chrysler 300 and Dodge Charger models equipped with the 5.7L Hemi engine, ensuring precise compatibility and optimal performance.

What's Included

• Mandrel-bent 16-gauge stainless steel exhaust tubing
• Flowmaster American Thunder mufflers
• All necessary hangers and mounting hardware
• Installation instructions

Ideal For

The Flowmaster American Thunder Exhaust System is ideal for Chrysler 300 and Dodge Charger owners who want to upgrade their factory exhaust for enhanced sound and performance without compromising daily drivability. It suits enthusiasts seeking a bold, aggressive exhaust note paired with improved throttle response and power gains. This system is perfect for street performance, weekend drives, and anyone looking to add a distinctive American muscle car sound to their 5.7L Hemi-powered vehicle.