Quote:
Originally Posted by carbonBLUE
so you're saying its a diesel engine? according to how BMW codes their engines the D stands for diesel and the 6 would be a 7 making it a B57D so it can't exist according to how BMW names their engines
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the formal designation is B58B30M1-335 HP and B58B30O1-382 HP. click on the link above, thats what people on bimmerpost have been calling them B58D = B58B30B and B58C = B58B30C. as i have shown the two have different turbos and manifolds. bimmerpost insider also says the US Z4 also has stronger internals.