Just installed my tune, my speedo seems to be way off. Would anything besides inputs for wheel and tire size affect it?

Other than that, it runs real damn good.

The wrong rear end gear ratio would do it.

talk to the tuner and have them double check tire and gear setting

Going to, just got to wait till he is not so busy, or at least answering the phones.

Alright, had my wife run next to me on the freeway tonight, the speedo checked out ok. I dont know it just feels way different with the new tune.