Quick Tuning Questions

[Marauder131]

Currently, my car has a performance tune for the stock 3.55 gears. However, in a week I am going to be putting in 4.10's. In order to tune the car for the new 4.10 gears, would I first need to flash it back to the stock tune, then switch to the 4.10 tune? Or, can I flash it from the 3.55 performance tune directly to the 4.10 performance tune? I assume that you can, but thought I would check. Also, as I no longer seem to have the instructions. One has to remove both the fuel pump and engine fan fuses prior to flash tuning, correct?

Thanks

[Sully008]

Yes, you can flash directly from the 3.55 tune to the 4.10 tune. If you have an Xcal1 or 2, I don't think you need to pull the fuses. I have an Xcal1 and I never did and it worked fine.