have done a quick search but couldnt find the answer...will a dealer do a retrofit of the PP on an older non-PP car? or is it even worth going down that particular rabbit hole?
You would require the following parts from the PP/R:
1. front 340mm brake discs/& 60mm calipers
2. bigger rear vented brake discs 310 x 22mm
3. bigger brake servo/master cylinder
Then fit & wire in a new loom for the PP "Diff" which is NOT a "diff" or LSD"...but a VAQ unit..which is bolted onto the drivers side driveshaft after the existing open diff in the gearbox..
& finally loads of VCDS coding in the braking, ecu & other modules to tell the cars safety & stability systems what other electronics it now has!
Better of fitting either Audi TT-S (ATE) 4pots & 340mm discs (straight bolt on to the front) or the Porsche Macan Brembo 4pots & 345mm Mk6 R discs, stage one tune & a Wavetrak diff in place of the existing open diff...& a better clutch whilst the gearbox is open..