Got a friend with an auto were slapping a set of hotrods in. Can he run it untuned with it being an auto. I know the two manuals ive done haven't had an issue for a few days staying out of the revs until they could get tuned. But idk how bad the drivability gets fucked up. He's not sure whether or not American muscle will get his tune done. But we had a 10' driving around on bbr stage 2's untuned for about a week but the three I've done including mine have been sticks. Just asking before we throw them in tomorrow and he can't drive home lol