I sent my 9100 SCT Tuner back to get reprogrammed because I got a Mustang GT instead of the V6. Same year just a GT. It came back reprogrammed with 3 of the same files, SCT1 or something like that. Anyways, I've been running my car on that which I assume is premium fuel so i fill up on premium, for 4 months. I noticed the transmission shifts were sloppy and not smooth and the throttle response was poor. High end power was also not up to par. I noticed all this after switching to stock setting. Could they have reprogrammed my tuner wrong? I feel a lot more power now with the stock setting and it shifts so smooth! It feels so much better to drive now. Who can I send it to, to reprogram it perfectly?

 

Go to www.superchipscustom.com and find a SCT dealer near u.