Description
Give your vehicle a more aggressive sound with a GMC Accessories Active Exhaust Calibration. When in Sport mode this calibration changes when and how much the active exhaust valves open making for a louder exhaust note at startup while cruising and under wide-open throttle. Compatible with 2025+ models with a 6.2L V8 engine (also known as L87). Installation by an authorized GMC Dealer is required.
