My vehicle had the same problem when I left after paying a little less than $400, you told me it needed a Master Cylinder. Because I had to leave i didn't have that work done. Upon checking the receipt from the place I'd had my brakes put on a new Master Cylinder had already been put on. I've found out from another company that the boost (hopefully spelled correctly) was left off the initial brake installation. What you did and the amount quoted for a Master Cylinder is and would have been money thrown away, which as a retired person, I cannot afford. I am very disappointed as the person who told me of you rated you highly. I will say the person who spoke with me was gentle.