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      11-05-2013, 08:43 PM   #3
paddy335
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Drives: M140i;X5 40d
Join Date: Jun 2011
Location: New Zealand

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I'm not exactly technical, but I would expect there will be plenty of tolerance left in the turbos to get more out of them.

Air intake and intercooling upgrades also.

More extremely there will probably eventually be plenty of options for bigger turbos.

None of it will come cheap. At all.