Was up guys, it's been a longtime since I've been on this forum. I had a 2011 chevy LML, but I decided to trade it in and got me a 2015 chevy 3500HD HIGHCOUNTRY 6.6L LML. My question is? I kept my h&s minimaxx from my old truck and also before a trade it I returned it back to stock. Now I want to use my minimaxx on my new truck. What should i do? I know I can download the vin unlock but I want to make sure that is going to work fine with my new truck. Any advice is welcome. Thanks, looking forward for some comments.