Reviving this thread yet again... I installed these TTS calipers on my GSW yesterday with no hiccups. I used Neuspeed stainless steel lines and new mounting bolts from ShopDAP and they bolted right to the steel knuckle of the GSW. Bled as I went and did three times outside then inside with manual brake pedal pumping, and there's no air in the brakes or anything (some folks in the Macan thread reported having bleeding difficulties IIRC). I painted the calipers before they went on; I dig the blue but it needs another coat or two and the brake fluid ate away at the paint to expose some of the original red paint so I definitely need to get more paint to touch it up. I'm using 340x30 rotors and that seems to be a good size, no reason to go up to 345x30 as one could with the Macan calipers.
I modified the brake boosting with VCDS using these parameters:
https://www.audirs3.org/threads/vcds-turn-off-brake-assist-coding.1782/ It didn't make a massive difference but it feels better after tuning for sure. More OEM, if you will -- when the brakes were initially on, they definitely felt a little spongy before fully engaging (and yes the pads were bedded into the rotors), and now they feel a lot more normal. The bigger performance/pedal feel difference IMO (other than the likely reduced fade under hard repeated stopping) is that the brake pedal feels a lot more progressive now. It's not as "pure" as an unassisted air-cooled 911 or even a 944 (which is my favorite boosted braking system I've ever used) but it's a lot better than the stock brakes. These calipers are way less "touchy" and with the reduced boosting, it doesn't feel like the car is deciding for me how hard to brake to nearly as much of an extent as before. If you really wanted a firmer pedal, I would definitely suggest going the RPV route (
https://www.golfmk7.com/forums/inde...esidual-pressure-valves-and-seal-lube.376654/), but this still feels pretty good I think. No complaints here. And they look a lot better than stock too, lol
Realistically, most people are probably going to go for the Macan calipers because it's a well established swap, there are more pad options, the pads are top-loading, and the calipers can usually be found for cheaper than these. But this is a really good OEM+ alternative IMO; installation is easy and it's a native MQB caliper.
Now to find some silver wheels...