thankx ivor. What do i need to do to get the 312mm on the front mate?
Easy, mate. I did a mini-guide on a thread, once, but good look finding that, LOL.

There will be loads around, though.

uk-mkivs/vortex etc.

7mm hex socket for the caliper slider bolts, 18mm socket for the carrier bolts & either phillips or torx screwdriver depending on how old your brake disc screws are.