The Flowmaster American Thunder Cat-back exhaust system is a high-performance, true dual setup designed for the 2025–2026 RAM 1500 equipped with the 3.0-liter Standard and High Output engines. Constructed from durable 409 stainless steel, this system offers long-lasting performance and corrosion resistance. It features dual 3.00-inch inlet pipes that lead into a custom-tuned American Thunder series muffler, delivering an aggressive sound and maximizing power output. The inclusion of Flowmaster’s exclusive Scavenger X-Pipe with D-Port technology enhances exhaust pulse velocity, creating a deep, resonant tone. The dual 3.0-inch mandrel-bent tailpipes exit at the factory bumper cutouts with 4.5-inch black ceramic-coated tips. Tuned resonators within the tailpipe assemblies help maintain a comfortable interior noise level, while the system’s design allows for improved performance gains, including up to 35 hp and 33 lb-ft of torque on High Output models.
This exhaust system is compatible with both 2WD and 4WD models of the 2025–2026 RAM 1500 with the 3.0L engine, serving as a direct bolt-on upgrade that enhances sound and performance. It fits the stock location and uses all factory hanger points for straightforward installation. The kit includes all necessary hardware and instructions, making it suitable for DIY installation. Designed to complement both stock and modified engines, this system is ideal for street driving and performance enthusiasts seeking a deep tone and increased horsepower. Backed by Flowmaster’s Lifetime Limited Warranty, it provides a reliable upgrade for your RAM 1500.
