Flowmaster's® Signature Series Cat-back exhaust system for the 2021-2024 Ford F-150 trucks with the 2.7, 3.5, and 5.0-liter engines. This system uses a TIG welded 304 stainless steel Siganture Series muffler for an aggressive to moderate sound level and increased performance. 3.00-inch mandrel bent brushed 304 stainless steel tubing allows for maximum exhaust flow and durability, while maintaining a highend appearance. This premium exhaust system is TIG welded for a stronger, more precise weld that looks as good as this system sounds. This system use a larger 4.50-inch PVD coated black chrome 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.