Hey guys I am new to the site, not new to diesel trucks. I recently purchased a 2015 GMC 2500HD. it is not deleted and was looking to delete my truck and wanted see what tuner work best on the Duramax. My last truck was a 2012 Ram 2500. I was running the H&S mini max on it with 4' exhaust and cold air intake system. the min max worked very well on and was satisfied with the response from it and fuel increase. My new truck is leveled and has 33/12.50r22 on it. Thanks in advance for any suggestions and help with this.
