First time updating firmware on tuner - ?
I've got a new tune from Bama (was experiencing some pinging on my 87S tune under moderate/heavy throttle above 3K) waiting to go on my tuner. I just downloaded the SCT programming software and was about to update the firmware on the tuner to the latest revision before I loaded the updated tune. It stated that I should return the vehicle to stock (tune) before I updated. Is this required? Will I lose my stock tune if I don't? I don't want to lose my stock tune by any means!
EDIT: should add it's the SCT SF3 (the newest one, 3015)