Just throwing this out there as a feeler but I was going through some stuff I had in storage this weekend and found a box of calipers I picked up when I had my first black Crossfire. I have 3 sets of 4-piston fronts and 2 sets of 4-piston rears. Since I can't for the life of me remember where I bought them or how many miles they have on them, I don't really feel comfortable selling them as they are so I'm going to do a complete tear down and rebuild of all the pistons, bores, seals, boots and hardware and was wondering if anyone here was looking for a complete bolt-on 4-piston AMG brake upgrade. One set of the front is spoken for and will be powdercoated in Brembo Red but I still have two sets of front and rears available. I'm tearing them apart this week and will be removing the pistons, seals and boots, splitting them, tanking them to remove the old chipped and scratched paint, cleaning up and sanding the surface so they look brand new, will reassemble them with new seals, mask off the bores and mounting points and have them powdercoated. After they're coated, I'll reinstall the pistons with new seals, boots and include new caliper hardware. Doing them all at the same time to save money on coating but with new 345mm front and 330mm rear cross-drilled rotors and ceramic pads, I'd like to get $1500 for front and rears. This would essentially be a brand new bolt-on AMG brake upgrade.