I have this mod, they are pretty awesome for the price.
Find a set of dual piston calipers from a 06+ W-body from ebay or a wrecking yard.
Buy 06+ rotors and brake pads. Install, you slightly bend the brake line to accomodate.
If you get drilled ebay rotors, make sure you get drilled only. I had drilled + slotted and I did not like the feedback. I changed to drilled only and they are much better.