Fascinating thread this. Is tim_s still about? I'd be very interested in this ECU swap. Does it require the 3-stage manifold to get the best results?
I couldn't find a 330ci and being in a rush to swap the old car ended up with a 57-plate, 2008 registered 325i 2-door, thinking as it was a 3L it'd still be about the same power as the 330ci. Now I find even though it's the same (N53?) engine it doesn't have the power of the 330ci at all. So I'd like to make it up if at all possible.
Is mine an E92 because it's a 2-door and the E90 just means it's the 4-door version?
Sorry for all the questions!
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