Thanks to @Adamizme, I did the MZ5 rear caliper bracket swap and switched all of my rotors to slotted centrics. I also actually followed EBC's bedding procedure and the new yellows are much more quiet than the old ones. Initial brake bite is much more pronounced thanks to the slotted rotors.
I also might be ordering all of this stuff and upgrading my methanol system to AN fittings and direct port.
I also might be ordering all of this stuff and upgrading my methanol system to AN fittings and direct port.