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Join Date: Nov 2014
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Wow, of all things they put it into the 728i, but not the more powerful e38 versions like 740i and 750i. This doesn't make sense, but I guess that is what they did. A quick look at the rotors suggests that even if you can get the calipers, this is not a good option. Specifically, the 728i uses 316x28 rotors while our e39m5 has 345x32 rotors. So the diameter may be a problem, but even if that is solved, the new pads likely won't fit in since our rotor is too thick. I don't think that this e38 to e39m5 brake swap is worth pursuing.