After much scouring i found one post with mention of the ayc diff noise been louder when hot.
Lets say the diff has no problems and you don't get any noice at all
Would there be any friction benifit to the SPIII if there was a cooler.
Say something like a 280mm x 180 hight x 19mm
It could fit behind the vents on the rear bumper (although i havn't actually measured it yet - its 2am)