Sorry to crash this thread, but have you had much luck with the mamba 3582r? I understand the owner of mambatek was one of the guys behind kinugawa and I've had a good run with kando turbos on jap imports in the past (rb25s/ sr20s etc) On paper the mamba turbos look half decent with twin ceramic ball bearings etc.... How do these things stack up against it's garrett cousin?? Cheers Graeme