Newbie question about SCT tuner and changing gear ratio
So I have a SCT X3 tuner with some brenspeed custom tunes. I currently have one of the custom tunes loaded. I just got the rear gears changed to 4:10 and need to adjust the gear ratio. My question is this.
After I plug in the X3 and get to the menu where I can set the correct ratio, that has only adjusted the configuration of the tune in the X3, right? I then need to upload that adjusted tune with the new gear ratios to the car? Do I need to first reload the stock tune into the car, then adjust the performance tune in the X3 with the correct ratio, then reload the performance tune with the now correct gear ratio in it to the car? Thanks in advance for any help