Gibson Cat- Back Performance Exhaust 2020 - 2026 Silverado & Sierra 2500HD / 3500HD 6.6L Gas - Single Black - 616517B

Performance Meets Style

If you’re searching for the best aftermarket exhaust system for 2020–2026 Silverado or Sierra 2500HD / 3500HD 6.6L Gas, the Gibson Single Side Cat-Back Exhaust delivers the perfect balance of power, sound, durability, and style.

Whether you're hauling, towing, or daily driving, this system enhances overall drivability and acceleration.

Precision-tuned to maximize low-end torque (1,800–3,000 RPM), where heavy-duty trucks work hardest.

Dyno-tested for measurable results. Improved towing and hill-climbing performance. Mandrel-bent tubing for smooth, unrestricted airflow

Aggressive Exhaust Sound with Minimal Drone

Featuring the Gibson Superflow Muffler, this performance exhaust system uses a baffled and chambered design (no internal packing).

Deep, powerful exhaust tone, Minimal interior cabin drone. Enjoy bold sound under throttle without sacrificing highway comfort.

Black Elite Series – Premium Finish

The Black Elite Series combines performance with stand out styling. T-304 stainless steel exhaust tip with a Black ceramic coated finish.

Easy Bolt-On Installation

Direct-fit cat-back system. Factory hangers and clamps included. No welding required.

Made in the USA. Backed by a Lifetime Limited Warranty.