front calipers are the same as what you have so don't waste any effort getting them done unless you want them perfect 
on a side note, I hate you 
Hahaha. Bargains turn up, just gotta wait for them.
What do I do just change the carries I got so I can run the 312mm discs ?
Do they make a big difference ?
Yea i got new disks and pads! Its no longer than changing them! Tbh its a peice of piss
Well worth it! Just went and had a play