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Going by the pictures of the Primary cats he has removed it doesn't.
EU spec'd cars with OPF's fitted have additional pipes attached to EACH primary cat that connect to two sensors. These sensors monitor any blockage to the OPF's/increase in back pressure to the end of the primary cats
Pictures below are his primary cats, non EU spec and an image showing the additional pipe on the primary cat. That cat is a M140i cat but Im using it to show thats the same kind of pipe fitted to each primary cat on our OPF M2C's)
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