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use the z3 pump...there an thread, I believe by talonxracer...points out major benefitsI pulled the oil plug out of the z3 bottom end assuming it was similar to my TSX bottom end. There aren't any threads on the inside orifice to get a bolt in there. What would happen if I just put the plug back in and ran the type s oil pump without plugging that hole?
I still have the z3 oil pump . . . I guess I could put that back on to make things simple.