man, i woudlnt even take my mirage to ultratune;
i did twice and both times they ****ed up;
first time at sunnybank, i asked them nicely to service the car and not place any stickers on my car (i hate stickers, they are tacky)
get the car back, reasonable service, two ultratune stickers on the car, are they stupid?
then went to ultratune at wooloongabba a few years later
got the car serviced, nothing obviosuly wrong, cept my exhaust fell off two days later and they didnt mention anything about it;
sure enough the service report had, exhaust checked;
exhaust checked my ass;
i wouldnt even dream of letting them near my skyline;