pitt911

suggest calling couple of dealers around you reference labor cost as it can vary significantly
Last year I had a boxter S with no PSE, so I investigated adding PSE on, the part cost was the same , but labor varied from 400 -1200 dollars at three different local Porsche dealership. I did end selling the car and got a spyder so never did the actual install

bmedude

If you have a 991.2 I wouldn't bother getting it installed. I would go with one of the aftermarket options.