Hey Seymour,
I recently posted a thread about headers and uprev. I plan on modding my exhaust on my '13 Titan. The plan is to install cajun catted B pipes, jba longtubes, cajun catback, borla xr1 40944, and uprev tune it with you. My concern is that a member brought up the fact that since I have a 2013 Titan, uprev may not have the codes to get into the trucks computer since it is new. do you know anything about this. If that is the case, I have no issue waiting on the headers I will just have everything else installed. What do you know about this issue?