The Flowmaster American Thunder Cat-Back Exhaust System is a high-performance exhaust upgrade designed for the 2022-2026 Nissan Frontier equipped with a 3.8-liter engine. Constructed entirely from durable 409 stainless steel, it features mandrel-bent pipes in 2.50 and 3.00-inch diameters to optimize exhaust flow. The system incorporates a Super 50 series muffler, delivering an aggressive to moderate sound level while maximizing horsepower and torque gains—up to 8 hp and 7 lb-ft at the rear wheels compared to stock. Its single exit design is complemented by a 4.00-inch polished stainless steel tip embossed with the Flowmaster logo, adding a stylish, custom appearance. The system is engineered for straightforward installation using factory hanger locations and includes all necessary hardware and instructions. Backed by Flowmaster’s Lifetime Limited Warranty, it offers a reliable upgrade for performance enthusiasts.
This exhaust system is specifically designed for the 2022-2026 Nissan Frontier with the 3.8-liter engine, making it a direct bolt-on replacement for the factory system. It is suitable for street and daily driving applications, providing improved exhaust flow, sound, and performance. The kit includes all mounting hardware and installation instructions, allowing for easy at-home installation without modifications. Compatible with the factory exhaust mounting points, this system enhances the vehicle’s sound and performance profile while maintaining a clean, polished look with its stainless steel tip. It is an ideal upgrade for Nissan Frontier owners seeking increased power, a more aggressive sound, and a custom aesthetic.
