Assuming the N54 in the 1M is arranged pretty much the same as in previous applications and some of the same products work..
1) HPF OCC.
2) TIAL BOV
3) Stett CAI if it fits on a 1M. Not sure. If not, then AFE's stage 2 looks great, or just a drop-in filter works.
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2022 X4 M40i - 2008 135i - 2015 F700GS
On Order - 2024 i4 M50
Scruffy's gonna die the way he lived... Mmhm.
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