FM Force II on 2014 Sierra 1500 Denali 6.2L
I had the Flowmaster American Thunder Series on a 2001 Yukon Denali and loved the sound. That option was not available for this vehicle. I spoke to the Flowmaster rep and he recommended the Force II as a good option. I did not want a loud system but wanted to get a good low rumble. The sound is exactly what I wanted. At takeoff you hear a good low rumble but at cruising speed it is barely noticeable in the cab. Basically no drone present. I do get some burble when the vehicle is in the V4 mode.
2016 Sierra Sport Exhaust
The Corsa Sport Cat-Back is an awesome exhaust and love the sound. I have posted a sound clip on you-tube, (Corsa Sport Exhaust 2016 Sierra). Easy of installation was extremely easy for any level of ability. Took about 45 minutes from unpacking through install. The exhaust came in perfect shape and exceptionally package to avoid damage. Install was straight forward adn all pats required. I would recommend this exhaust to all.