hello all, Just bought a new to me 2016 Yukon Xl Denali. I have been cruising the forum for sometime now and researching all the upgrades that I want to do. I live in Nashville Tn and we have annual emissions testing but I really want a black bear tune after reading everything on here and talking with black bear but I don’t know if it is going to effect emissions or not. I have a v2 tuner so I can always flash back to pass but I wanted to reach out to the community to see what if any your first hand experience with this is. Thanks in advance.