Blimey- you lucked out there..!AFAIK the FD kit is allegedly made in conjuction with Brembo. I bought my car and it had the FD 6-piston Brembo setup but I thought it came like that from factory despite reading a lot about the car prior.
Over £3K of braking parts ( of course, Im sure there must be a few of us that dont require 'more' oil or 'more' braided lines or necessarily want pads either - retailers huh !!?!) but the brakes must make a huge difference to the stopping power & feel...!
Of course, it means you MUST have 19" rims fitted. as the FD Brembo set up wont play inside a standard for 4200, ergonomically superior (IMO) , 18" wheel...?