Yeah Matt ek9 on here has a plate diff. Kazz one. He just runs syncro80 gear oil no modifiers or out. Seems to be doing okay.
If you don't like it put the stuff in. Should make the diff alittle more agressive aswell.
It sure did look quick on track and sounded awesome!! i thought your car looked familliar! as i remember reading your build thread! are you on track at the Forge actionday or japfest? il try and get some more photos if so!!