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The Gibson Dual Sport cat-back exhaust for 2015–2019 GMC Sierra 2500 HD 6.0L is a stainless, bolt‑on system that routes outlets behind the rear tire to avoid hitch interference and add a distinctive appearance. Dyno testing supports typical increases of 10–15 hp and 15–20 lb‑ft of torque while delivering a deep, authoritative tone with minimal interior drone. Polished clamp‑on tips, mandrel‑bent tubing and included hardware make installation hassle‑free; Lifetime Limited Warranty.
Gibson 15-19 GMC Sierra 2500 HD Base 6.0L 3.5in/3in Cat-Back Dual Sport Exhaust - Stainless
