I was thinking the same thing
check out my current M6's calipers...
BUT I think the new M5 caliper "///M" sticker is too small for the size of the caliper... just my opinion
2010 Audi R8 V10 Coupe 6MT-White on Red
GMG Exhaust | H&R Springs | H&R Spacers | Carbonio Intake | UniTronic ECU Upgrade| 15% Tints/50% Windshield|LED License Plate
2013 Range Rover Sport-Black on Black
Stock with 15% Tint & 50% Windshield