The Flowmaster American Thunder Direct-Fit Muffler is a performance exhaust system designed to enhance the sound and power of the 2025-2026 RAM 1500 equipped with the 3.0-liter High Output engine. Constructed from durable 409 stainless steel, this system offers long-lasting performance and trouble-free service. It features a 3.00-inch inlet pipe that leads into a Super 10-based muffler, delivering a deep, aggressive sound and maximizing horsepower and torque. The dual exit design connects seamlessly to the factory tailpipes, providing an effective upgrade that boosts rear-wheel dyno gains of up to 13 horsepower and 12 lb-ft of torque. The system is engineered for easy installation using factory hanger locations, and it includes all necessary hardware and instructions, backed by Flowmaster's Lifetime Limited Warranty.
This direct-fit muffler system is compatible with both 2WD and 4WD models of the 2025-2026 RAM 1500 with the 3.0-liter High Output engine. It is intended for street performance and daily driving applications, offering a straightforward bolt-on upgrade for improved sound and performance. The kit includes the muffler, hardware, and installation instructions, making it suitable for DIY installation at home. Designed as a simple replacement for the factory muffler, it enhances the vehicle’s exhaust note while providing measurable power gains, making it an ideal choice for enthusiasts seeking a performance upgrade that combines quality, durability, and ease of installation.
