Hi all, Took my A4 into Audi on Friday to have the two coils replaced and its come back significantly down on power, basically the power i gained from the remap has now gone. I didn't ask for an ecu update, and they didn't tell me they were doing it either and on the work sheet there is no mention of it Im gonna ring up and go ballistic tomorrow. Just interested to see if anybody else has had un-authorised modification done to their car whist at audi. Also is there any way using vag com etc i can see when the ecu was last updated so I some proof. I imagine their first line of defense will be to deny ever doing any work!!