what's a BBTB? (in relation to an m50 inlet mod)?
aaah that would make sense, wouldn't that necessitate a change to the compression ratio?
the manifold and bbtb are a gem for the 328i, but the midrange was just rubbish. i thought it was okay, but after a while i started to hate the car. it needed the remap to make it 'whole' again
i'm much happier with it now it's got the proper map on it
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