BTW, I have had views from two experienced tuners that if the Stage 1 upgrade is done at the factory, where they reflash the ECU, adding 569s will not necessitate getting a new unlocked unit as the post-reflash map can adapt satisfactorily. The optimal path is bespoke tuning, but do people believe that the Stage 1 reflashed standard ECU + cams will do for a lower cost Stage 2 upgrade?
