Flowmaster American Thunder Exhaust System (Dual Side Exit)

09-18 Dodge Ram 5.7L Hemi 1500 & Ram 5.7L Hemi 1500

817490

The Flowmaster American Thunder Exhaust System with Dual Side Exit is engineered to enhance both the sound and performance of the vehicle. Built for vehicles with a 4.7L or 5.7L engine and factory dual-exit exhaust, this cat-back system delivers a noticeable upgrade in tone and flow while maintaining everyday comfort. Constructed from durable 16-gauge mandrel-bent stainless steel, the system is optimized for efficiency and reduced backpressure. At the heart of the setup is a 50 HD Series performance muffler that offers a moderate yet assertive exterior tone with minimal drone inside the cabin—ideal for drivers who want to hear their power without overwhelming interior noise. The dual 2.50-inch tailpipes split off into polished 3.00-inch 304 stainless steel tips that can be installed to exit either behind the rear wheels (for towing clearance) or straight out under the rear bumper (for a classic performance look). This flexibility lets you tailor the exhaust system to your style and use case. This bolt-on kit connects after the factory catalytic converter and uses the existing hanger locations. It comes complete with all required hardware and instructions for a smooth installation that most drivers can complete at home.

• 50 HD Series Performance Muffler – Delivers a deep, moderate exhaust tone with low cabin resonance.
• Dual 2.50-Inch Mandrel-Bent Tailpipes – Promotes smoother exhaust flow and improved power.
• Polished 3.00-Inch Stainless Steel Tips – 304 stainless steel for a high-end look and corrosion resistance.
• Multiple Exit Options – Choose between dual side exits for towing or straight rear exits for a bold finish.
• 16-Gauge Stainless Steel Tubing – Ensures long-lasting durability and heat resistance.
• Connects After Factory Catalytic Converter – Keeps emissions equipment intact.
• Factory Hanger Compatibility – Simplifies installation without cutting or welding.
• Complete Installation Kit – Includes all clamps, hangers, and detailed instructions.
• Moderate Exterior Tone – Aggressive enough to be heard, refined enough for daily driving.

Flowmaster is an iconic exhaust brand famous for signature exhaust tone and performance mufflers, as well as complete axle-back and cat-back systems. Built for muscle cars, trucks, and performance builds, Flowmaster systems are designed to improve flow and deliver the sound character enthusiasts chase.