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Engine Air Filter Question.

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
javis20
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Engine Air Filter Question.

Post by javis20 » Sun Jul 18, 2021 1:40 pm

enuff_zed wrote: Sun Jul 18, 2021 8:45 am Do you think maybe someone lifted the lid just enough to fit the K&N, didn't see the other filter stuck in the top half and assumed there wasn't one fitted?
Cannot think of any other logical answer to that one.
Funny thing is, it looks like the filter was made for that airbox, but it's not even listed in the Mann catalog. Only thing written on it is Mann 10 261 33 S01. It even had dimples that were pressed into small holes in the air box.

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enuff_zed
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Engine Air Filter Question.

Post by enuff_zed » Sun Jul 18, 2021 1:52 pm

javis20 wrote: Sun Jul 18, 2021 1:40 pm
enuff_zed wrote: Sun Jul 18, 2021 8:45 am Do you think maybe someone lifted the lid just enough to fit the K&N, didn't see the other filter stuck in the top half and assumed there wasn't one fitted?
Cannot think of any other logical answer to that one.
Funny thing is, it looks like the filter was made for that airbox, but it's not even listed in the Mann catalog. Only thing written on it is Mann 10 261 33 S01. It even had dimples that were pressed into small holes in the air box.
Well its conceivable it was made for it, but not intended to mate with a K&N.
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