I'm new here but not a newb so don't tear what I say to pieces please lol. I can take constructive criticism though. So my def tank heater went out. Well it was going out and now it's throwing a slightly different code and says DEF system check owner manual or whatever so I assume it's the heater. either way iidcwhat it is I want it gone. 15 miles left limited to 55 mph, then it says my limit will be 4 mph after thay??!? The main problem is I have to be in corpus Christi by no later than Friday for work and that's a 14 hour drive. I need the easiest way to delete my def system. I already have a edge cts2 evolution. Do I still need the flash thing from EFI or can I just purchase the tunes and exhaust?