@BlackBearPerf I know it is in best interest to have the trucks in tip top shape for the tune. I know it is nice to have certain mods completed prior to the tune. Two questions : 1. I usually run e85. What should I do (read : what would you do) for fuel in the weeks leading up to the tune? 2. My f*ing airbag light came on this morning. Is this something that needs to be addressed/corrected prior to the tune event? Any other tips/tricks for us as this highly anticipated day approaches?