I have a 2016 sierra 2500hd I do a lot of driving and a lot of towing and I'm looking to get more knowledge of how to get the most out of my truck. The last duramax I had was a 2006 3500 which I really liked and worked really well but I didn't do too much to it. I'm seriously considering a tuner of some sort and an new CAI.
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I'm new from Ontario Canada.
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