Basically ive sourced some S4 facelift rear calipers and carriers (just need to sort payment out) and been in touch with trig for some brackets to do the 300mm rear upgrade now my question is could i run these with 312mm upfront until i source some B6 S4 calipers as i already sourced S4 uprights just need to pick them up oh and purchase some new alloys !! But cant justify staring at some calipers and brackets till i get the front calipers etc !!