This is a path fraught with peril. The consumer will not know why you use a more expensive direct fit oxygen sensor verus a cheaper universal. He has not saw a wiring splice fail, ground out the ECM causing a new running problem and necessitate the replacing of a computer but I have. He will not understand the difference in the cheap chinese bearings and the Nationals, BCA, or Timkens. The reman water pump looks as good to him as a new one. After all they are all "warrantied". Even the repairs the consumer thinks he needs are the majority of the time not the problem. The shop who low balls a repair on line that the customer doesn't need is then free to charge what they like on the repair that actually gets completed when they get the car into the shop. The dishonest shop can get people to give them positive reviews, etc. etc.