differential

Has anyone upgraded their AYC diff to the S-AYC diff from the Evo 8? I know that it's pretty much a direct fit with a few small mods, but whats needed in terms of wiring/pump? Do I need to installed the S-AYC ECU and wiring harnesses and is the existing AYC pump suffcient? Just interested as I...

So, after my car came back from insurance repair, I noticed that the AYC was being very loud going around slow tight corners, like roundabouts. It seemed to squeak like a squidgee on a window on right hand turns, and creak and clunk on left hand turns. Using the guide here, I change the fluids...