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Discussion Starter #1
Hey, Im new here, but my dad and I are gunna start working on his 95 325 convertible. I fabricated a cold air intake with a cone filter from my old probe gt and it fits on my dads BMW. I am wondering if those two hoses from back of the airbox are vital, or if they can just be connected to the intake tube. Thanks
 

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First off welcome to the forums.
to answer your question, no they are not vital to the cars performance, from what i recall its some sort of air/altitude reader. not vital at all, just one more of BMW's extra features (which really only means more service costs to make money on hahahahahaha) seriously dont worry about it, I personally have mine tie-wrapped to the frame because of my CAI
 
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