Flowmaster American Thunder Cat-Back Exhaust For GMC Sierra 2500HD/3500HD (07-19) (817541)

The Flowmaster American Thunder Cat-back exhaust system is designed for 2011-2019 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with a 6.0L engine. This system enhances both sound and performance, delivering a moderate to aggressive exhaust note inside and outside the vehicle. Constructed with stainless steel components, it features a 50 Series HD muffler and large dual 3.00-inch mandrel bent tailpipes, which can be configured to exit either dual sides or straight out the rear. The system is emissions-legal, bolt-on, and finished with polished 4.00-inch stainless steel tips, offering durability and a refined appearance. It includes all necessary hardware for an easy installation and is covered by a lifetime limited warranty.

This exhaust system is specifically designed for Crew Cab models with a standard 6.5-foot bed and a 153.7-inch wheelbase. It is intended for use on trucks equipped with a 6.0L engine, serving as a direct replacement or upgrade to improve exhaust flow and sound. Suitable for street driving and daily use, this bolt-on system provides a performance boost while maintaining emissions compliance. The kit includes all required parts for straightforward installation, making it an ideal upgrade for truck enthusiasts seeking enhanced sound and performance on their 2011-2019 GM 2500HD/3500HD models.