If the OP really does have a F20 M135 he'd be better off posting this thread in the F20 section rather than the E82/E88 section, unless of course he asking about whether a N54 intake will fit a M135.... which it won't
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2017 X5 4.0dSE ~ Atlas Cedar:Ind.Amaro Brown Merino&Piano Blk, Sport Auto, DHP, Comfort seats, Cold weather pack, HK audio, Electric towbar, Sun protection glass.