Gibson 20-22 Silverado/GMC Sierra 2500 HD 6.6L Crew Cab (Long Bed) Cat-Back Dual Extreme Exhaust

If you're looking to give your 2021-2025 Chevrolet Silverado 2500 HD or GMC Sierra 2500 HD a more commanding presence and a bolder sound, this Gibson Dual Extreme Cat-Back exhaust system is a solid choice. Designed specifically for the 6.6L engine in Crew Cab Long Bed configurations, this system replaces your factory exhaust from the catalytic converter back, aiming to improve exhaust flow and deliver a distinct performance tone.

This system features mandrel-bent stainless steel tubing for smooth airflow and durability, paired with a baffled and chambered Superflow muffler. Gibson tunes these systems on the dyno to achieve a powerful exhaust note on the outside of the truck while minimizing interior drone, so your cabin stays comfortable during longer drives. The dual wall, slash-cut polished stainless steel tips exit behind the rear tires at an aggressive angle, giving your truck a more muscular look. Installation is straightforward as it's a bolt-on system, meaning no welding is required, and it utilizes factory-style hangers for a secure fit.

You can expect a noticeable change in sound and a potential for improved throttle response and horsepower gains, as dyno testing suggests an average increase of 15-20 horsepower. This system is 100% made in the U.S.A. and comes with all the necessary hardware for installation. Gibson backs this exhaust with a Lifetime Limited Warranty, offering peace of mind for this significant upgrade.