I took my car in to have the diff oil changed and also to get my steering noise fixed, they did both of these and it appears to be all good so far.

However I totaly forgot to mention to them I have a tune on my car and for them not to reflash my car.

For a diff oil change and tightening the steering box bolts is there a chance they would have for some reason re-flashed my ecu? i get so paranoid about these things, the car obviously still feels really fast but theres no way to really tell until I get back to the q/mile track!