I have a 2020 ZL1, had upgrades done on the engine, then a trans tune. The shift points now for Touring, Sport Mode and Track Mode are all the same. Track mode used to be very different from the others...
Does anybody have the trans tables for a 2020 ZL1, 10L90 that they can share with me? Looking for normal, Pattern A and most importantly Pattern B? WOD, partial throttle, upshifts and downshifts...