Dave, how much are your bigger discs to buy???
Technically they're smaller, the kit retails at £1250 and that includes lines bolts carriers etc etc
Sounds a lot but mate that to some eBay TTRS calipers at 3-400£ and its a affordable BBK, if you want new calipers and some fast road Pagids it comes to just under £2k....
Much better value than the VWR kit that costs £600 to make and retails at £2.2k bonkers!
£1250 just for a set of discs is a lot of cash for a car that only sees the track a handful of times a year.
Well as I said its not just discs and to be honest you need a reason to buy the AP Stuff, it started life as a TTRS replacement kit some guys were going through stock rotors in 3 weeks now you either take your 40k TTRS off the road or buy stock again or upgrade. Theres not just none available that work theres Tarox and some guy from the US thats making some weird and wonderful assembly...in fairness they've all been tried on track and have been found wanting.
Theres just no point doing a track day in a TTRS with stock brakes, you won't make it till the afternoon session....
Buying a set of AP's for a 11k Edition 30 is a major commitment, maybe not so much for a 13 plate TTRS worth 35K.
Theres 200 TT Kits out there, some have found there way into Mk5/6/7 and others but generally its a way of just not worrying about brakes and people end up worrying about a lack of power and crap tyres....
Its quality stuff, race car quality castings and heat treatments, CNC alloy bracketry and bells, fixings from a GT Car and a bell design straight from a LMP car it all costs to manufacture in the UK and assemble. Its a whole load better than the VWR Kit which is considering what you end up with is a crazy price.
If you want to put some red calipers with those APs it'll be another £600 pagid blues £240, add it all together and its still less than the VWR kit or a Brembo Kit with solid discs
That said you need a reason to buy AP but if you have the requirement theres little choice....