I am somewhat new to the duramax and have a 05 lly.I still have some factory warranty and do not want loose it.I have a lbz mouthpiece and would love to put it on .will this cause trouble?with gm
this is all new to me I just boughht a lly and love it I am a hunter and love to fish to and also am a rig welder and am currently in ok.49yrs old kinda crazy !and love to get more fuel mileage out of my dmax