I've had a search but cant seem to find the answer. I'm going from MFI to Cossie Management on my S2 but need to know if I need to change the Fuel pump ? I know the S2 is an external fuel pump, but I've got a Cossie in tank pump from my last Fiesta, could I use that or would it be an uprated external jobbie I need?

Also as I'm doing un underside resto can I get rid of the ford bias valve thing for the rear discs and fit an aftermarket one just to neaten things up and save painting an re-fitting? I'm fitting rear discs and re brake lining the car anyway.