Has anyone done one recently? Would you mind sharing a copy of your invoice? I had a couple of kind members send me theirs where the pricing out the door was slightly less than $600. I've been working with the Cleveland SC. Unfortunately they are telling me the cost of the TPMS sensors have gone up to $107 each unit, rather than the $50. They claim this was effective January 2017. So they estimate the upgrade will be between $700-800. Initially when I spoke with them a month ago, they quoted me almost $1,200 to do the upgrade. I wrote back indicating I was shocked ... most manufacturers as they increase their production have lower parts costs. The cost of the sensors which I can source aftermarket for between $160-200 seems to be excessive. My car is a '14 P85.