Have GM Borla, Chuck is correct, it is the touring (quietest) version. Near stock from inside the cab when cruising, better beefier tone at start up and when you accelerate. Sounds like a truck now, but not obnoxiously so.
GM Borla will be installed Tuesday. Know it's tame for many, but I'm not looking to announce coming and going early hours to my neighbors, or lose V4 functionality, but I do want to hear some growl from the truck. Hoping it will be the compromise I'm looking for. I'll try to post a sound clip after...the void of clips/videos out there for this system is surprising.
Recently swapped out stock 20" Chrome Denali wheels for 20x9 +18, Method Mesh Matte Black. Trying to tone down chrome, but wheel still has some accents.