Flowmaster American Thunder Cat-Back Exhaust System: Dodge Durango SRT (18-22) / Durango (22-24)

Flowmaster American Thunder Cat-Back Exhaust System

2018–2024 Dodge Durango SRT / Durango 6.4L V8

817952

Overview:

The Flowmaster American Thunder Cat-Back Exhaust System is engineered specifically for the 2018–2024 Dodge Durango SRT and Durango models equipped with the 6.4-liter V8 engine. Designed for enthusiasts seeking a perfect balance of aggressive sound and enhanced performance, this exhaust system delivers a noticeable upgrade over the factory setup. It offers improved exhaust flow, a distinctive tone, and a custom appearance that complements the Durango’s muscular styling.

Ideal for drivers who want to amplify their vehicle’s presence both visually and audibly without sacrificing daily drivability, the American Thunder system enhances throttle response and adds horsepower and torque gains while maintaining a comfortable cabin noise level.

Key Features:

This cat-back exhaust system incorporates advanced design elements and premium materials to ensure durability and performance:

• Super 44 series mufflers for an aggressive yet refined exhaust note
• Mandrel-bent 3.00-inch 409 stainless steel tubing for maximum exhaust flow and longevity
• Dual rear exit with 4.00-inch polished stainless steel tips for a striking custom look
• Tuned resonators to reduce interior drone and maintain driving comfort
• Direct bolt-on installation using factory mounting points—no cutting or welding required
• Max dyno gains of 12 horsepower and 20 lb-ft torque at the rear wheels over stock
• Includes all necessary hardware for a hassle-free installation
• Backed by Flowmaster’s Lifetime Limited Warranty for peace of mind

Construction & Design:

The American Thunder Cat-Back Exhaust System is crafted from durable 409 stainless steel, known for its corrosion resistance and strength under high temperatures. The mandrel-bent tubing ensures smooth exhaust gas flow with minimal restrictions, enhancing engine efficiency. Flowmaster’s Super 44 mufflers are engineered to deliver a powerful exhaust tone without excessive noise, striking a balance between performance and comfort. The polished 4.00-inch stainless steel tips add a premium, aggressive aesthetic that complements the Dodge Durango’s bold design.

Performance & Sound

This exhaust system is tuned to provide a deep, throaty exhaust note that enhances the driving experience without overwhelming cabin noise. The inclusion of tuned resonators helps control interior sound levels, making it suitable for both spirited driving and everyday use. Performance-wise, the system delivers measurable gains, with up to 12 horsepower and 20 lb-ft of torque increase at the rear wheels, improving acceleration and throttle response.

Installation & Fitment:

The Flowmaster American Thunder Cat-Back Exhaust System is designed for a direct bolt-on installation on 2018–2022 Dodge Durango SRT and 2022–2024 Dodge Durango models with the 6.4L engine. It utilizes factory mounting points and includes all necessary hardware, allowing for a straightforward installation process without the need for cutting or modifications. This ensures a secure fit and preserves the vehicle’s factory integrity.

What's Included:

• 3.00-inch mandrel-bent 409 stainless steel tubing
• Super 44 series mufflers
• Dual 4.00-inch polished stainless steel exhaust tips
• All required mounting hardware and clamps
• Installation instructions

Ideal For:

This exhaust system is perfect for Dodge Durango owners who want to enhance their vehicle’s performance and sound without compromising comfort or requiring complex installation. It suits enthusiasts looking for a durable, high-quality exhaust upgrade that delivers both visual appeal and measurable power gains, making it an excellent choice for street driving, weekend cruising, and spirited performance driving.