You know I may be on the cheap here but I definetely feel that Dmitry got ripped off if they only changed what he lists they did. By the way why did they change the belt tensioner? Got nothing to do with poor running. the only pricey items on the list were the tensioner and the wires. the rest are not expensive. And if I tell the mechanic to call me with the estimate before he does the work and he goes ahead and does the repair on his own I would not pay him. Period. See you in court. I would hate to think that next time I do my tune-up it will cost me $1400.00. Check the prices for the parts here and do the calculation. It takes about an hour to change the tensioner (mine was done a month ago, I was standing beside the mechanic while he was doing it) the rest is easy.