There is a great deal out on some of the other forums about using the Caddy brakes from the ATS and XTS (not the same calipers). Since a lot of our builders do upgrades on the cheap, I thought I'd throw this out there. There are a couple of kits on the market and some YouTube videos that show how to make it happen. There are also several extensive threads on some of the other sites. I'm not looking to reinvent the wheel here, just have a conversation. Have any of you actually done the swap and what can you tell us about your experience?