BBK for B5 S4

[S4NOWRS4L8ER]

So I have an extra set of Touareg calipers that we warrantied because one piston was sticking. So I have a couple of questions:
They are brembo 20 9236 06 2 A and 20 9236 05 2 A.
1. what carrier adapters will I need and what size rotors can I fit?
2. Any idea on how to get all 4 pistons out? I used a little compressed air and only 1 came out so now the air just comes out of that empty cylinder. Obviously I want to replace the seals.

Thanks in advance!!

[S4NOWRS4L8ER]

2. So I got the pistons out. I wedged the 1 out so the other 3 came out. The stuck one was corroded. Can I replace just one piston? It doesn't appear that the cylinder has any corrosion on it.

[Joirs]

Yes, you can replace just one piston.

[elewsader]

These pistons have been difficult to find, if you come across inventory please post a reply here.