Easy there Ceaser, I didn’t equate anything here. Tunes are far far more involved than A/F ratio . Seriously. Understanding what your doing also helps, but I would agree…East Side Performance lost their Tuner a few years ago and the shop owner took over…and just began installed previously used programs with similar packages…and lived off that for a few years. The rocket science is trying to do it right and better. Some rockets will explode, some wont.
Now come fix my 4wd ! I dunno what happen .