That makes TOTAL sense to me - the larger diameter rotors push the outer edge of the caliper further from the knuckle, which necessitates longer mounting bolts to keep the same amount of thread engagement. Good point for those considering the swap!

I found out the hard way that my 2014 base came with 360mm rotors.
I ordered 350mm rotors with 350mm pads but the pads sit higher than the rotors.

Either the caliper or the control arm is different because both 350mm rotors and pads should've worked.

when I spoke with several dealers they said that you have to get rotor size by the Vin and that all online parts stores (including which are run by dealers) use generic databases and are very often wrong. My base 2013 also had 360mm fronts.

My indy wanted to physically measure the rotors on my 14 CD Platinum before he ordered them. FYI they are 360mm. He also said they were heavier than any of the ones they see on Touaregs & Q7s. :D

That's called "recency bias."

According to Partsgeek.com, the 2014 Cayenne and 2014 Audi Q7 use the same part numbers.

Any luck?

Easier said than done. you really have to take off the disk and measure the backside to be accurate enough to the the 10mm difference. I did just that and found out I had 360mm on my 2016 Base Cayenne. Lots of (mis)information out there relating wheel size to the rotor size, it wasn't true in my case at all. The car came with 18"s from the factory but rotors were 360mm. The Porsche parts catalog claims 350mm for back calipers which wasn't true in my case either.

the measurement of disk is 14.2 inches as shown below.

https://cimg3.ibsrv.net/gimg/rennlis...6cb61315d.jpeg

Bump
 

Sorry to bump an old thread, but hopefully adding helpful information here. I too was confused. Or rather, just a little frustrated when searching for brake rotor options for my '11 Turbo. It's like, you're better off having a Base, S, or Diesel or basically any model except the Turbo if you're trying to buy new brakes, at least for the front. And/or, better off having the PCCB option, if you're that fancy. Otherwise, good luck trying to track down a set of decent, not overly expensive brake rotor OE options, let alone anything aftermarket and "cool" i.e. drilled/slotted options. I guess that's what you get for having 390mm front rotors, which are bigger than many other vehicles wheels! Let alone their rotor size.

I posted about it here: 958.1 Turbo Brake Rotor Options