It seems to not of been found yet and we need to realize different uses, abuses, etc play a big roll. I was not satisfied with the offerings when I installed my LSD so contacted different manf and none were doing anything just yet. I decided on a mid chrome molly flywheel and moderate clutch but was not able to source it so using stock for now. I might end up having to swap before long once the EFR is up and running, Rodmoe already has his new setup installed so we will be able to see stock versus it at least.