As far as I understand, there are only a few shock manufacturers, and they OEM for all the other companies... If I remember correctly, there were 3 major manufacturers, Monroe, Gabriel and some other one which I forget... Could be Billstein, but I cant remember. Anyway, in the case of the others, it seems to me you are paying more for name than performance. Having said that, I have Deutschtech ones on my rig because they came with the RE lift kit.