Flowmaster® introduces our FlowFX® stainless steel cat-back exhaust system for the 2021-2024 trucks with the 2.7, 3.5, and 5.0-liter engines. This system uses a FlowFX® series muffler for an aggressive to moderate sound level and increased performance. 3.00-inch mandrel bent 409 stainless steel tubing allows for maximum exhaust flow and durability. This system use a larger 4.50-inch black ceramic-coated tip for a custom look. Max dyno gains of 13 hp and 16 lb-ft at the rear wheels. All of the necessary hardware is included, and factory-mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty.