high flow

  1. K

    WTS BMW High-Flow Performance Catted Downpipe for F07, F10, F11, F18 and X5

    BMW High-Flow Performance Catted Downpipe for F07, F10, F11, F18 and X5, N20 engine. This is an aftermarket customised 300 cells catted Downpipe. The design very close to stock and improves performance greatly. This customised Downpipe is able to pass inspection. Suitable fittings for 5'...
  2. afmcbeemer

    WTB high flow catted downpipe BMW N13 engine

    as above - AFAIK Supersprint / HJS / Milltek make one
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