Ok....
The calipers you need are the 18ZL (left) and 18ZR (right)
The discs have a 67mm centre bore so don't fit the mk5 you can't do a centring ring which is 1mm thin it just machines itself away so you need to remove and fill in. There's also no method of fixing the disc to the hub.
That said some custom machining sorts all these problems, I also use this disc with the 996TT caliper with great success as well as R8 rears all with correct centring rings and disc fixings sorted
They won't fit with the R32 disc offset is way different
TTRS master cylinder will not fit the Mk5 out of the box, we're getting the MC's from ATE directly, there are 14 different master cylinders for the Mk5 platform not all MC's are upgradeable, we're slowly getting the data together as to which will and which won't, we're using your VIN number to speak to VW about exactly which MC is fitted to your vehicle and seeing if it's a straight bolt on or indeed we need to supply a machined insert. ATE supply the MC and a matched servo as a unit to VW.
If you don't get this right you will cover up the compensating valve and you WILL run into the car in front. I'm deliberately keeping the data safely on my IPad for no other reasons the consequences of getting it wrong through forum Chinese whispers are dire. I've always shared any info I've gleaned and never charged anybody commercial rates in 5 years...this one needs managing though. Unless you are running some serious stoppers you do NOT need an MC upgrade
The 17ZL/R calipers have even bigger piston sizes than the 18 ones...
I find it laughable seeing these for sale on eBay at mega money........why not just buy V8 tourag TDI ones Brand new from VW....... same .....
They're also bloody heavy, I've got the bolts in EN16 with a 70 tonne tensile strength, lines if somebody really wants to do this....can't think of one reason why you'd pick this over the NQSBBK except it looks bigger
