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2010 2011 BMW 5 Series Forum F10 550i catalytic converters N63 v N63TU |
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05-17-2017, 12:34 AM | #1 |
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Drives: Alpine White '13 550i
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550i catalytic converters N63 v N63TU
Anyone know if the catalytic converters are different between the n63 and n63tu? I know the part numbers are different but are the internals different? Like the cells inside the cats. I have n63tu cats on my n63 and I get 13mpg all city driving though.
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