Cayenne / Touareg 6 piston 330mm brake calipers
JHMotorsport caliper hardware to fit any post 2002 Audi and 2000+ Audi S4
MB ML350 330mm rotors - good condition
RS4 Stainless brake lines
Carbotech XP10 track pads (can be used on street, but will wear faster), 60% brake pad
Generic street brake pads (50% pad left)
Hubcentric rings to run the MB rotors with larger hub diameter than 57.1

$600 - They could use some paint.

The very edge of the caliper has been ground off to accommodate some OEM rims. It doesn't affect structural integrity, it is about 2mm at the furthest point These are gigantic cast aluminum calipers. Many track days.