I have seen differing things all over the internet and even the Bosch parts numbers are misleading. The part numbers are used interchangeably on Porsche part sites and on the Bosch site. You can look up one part number and the Porsche book says that it's the turbo boost sensor and the Bosch site will say its the MAP sensor. Perhaps the sensors are interchangeable, even though the part #'s are different, and hence the information out there is confusing. Forgive my ignorance, but is the turbo boost sensor located upstream of the throttle body (in Panamera, mounted directly in front of), and the MAP sensor is located downstream of the throttle body (located on the very back of the intake manifold on Panamera)? Thanks!