Flowmaster American Thunder Exhaust System

19-24 Ram 5.7L Hemi 1500 (New Body)

817843

The Flowmaster American Thunder Exhaust System is a powerful upgrade for vehicles equipped with a 5.7L engine and factory dual tailpipes. Designed to deliver a deep, aggressive exterior tone with mild interior resonance, this cat-back system boosts both performance and sound without compromising daily drivability.

Built from durable mandrel-bent stainless steel tubing, this bolt-on system ensures optimal exhaust flow and long-lasting performance. At its core is the 50 Series™ HD muffler, engineered specifically for Hemi-powered applications, offering refined acoustic tuning and increased horsepower. The dual 3.00-inch tailpipes clear the factory spare tire with ease, maintaining full functionality while improving underbody flow.

To complete the look, the system features large 4.00-inch black ceramic-coated tips that fill out the rear bumper cutouts for a bold, factory-integrated appearance. The exhaust system reuses factory hanger locations and includes all necessary parts and hardware for a quick and straightforward installation—no cutting or welding required.

• 50 Series™ HD Muffler – Delivers aggressive exterior tone with minimal interior drone.
• Mandrel-Bent Dual 3.00-Inch Stainless Steel Tailpipes – Improves exhaust flow and durability.
• Large 4.00-Inch Black Ceramic-Coated Tips – Bold appearance with high heat resistance.
• Factory Hanger Compatibility – Uses existing mounting points for a clean, secure fit.
• Clears Factory Spare Tire – No loss of spare tire accessibility.
• Stainless Steel Construction – Corrosion-resistant and built to last.
• Complete Installation Kit – Includes all necessary hardware and easy-to-follow instructions.
• Emissions Legal Bolt-On Design – Simple at-home install without emissions issues.
• Lifetime Limited Warranty – Flowmaster quality you can count on.

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.