Quote:
Originally Posted by 540iSUP
Sounds like a bypass. About 20 years ago Injen and AEM used to sell bypass filters for their CAI systems. It prevents water from being sucked up into the engine because of the low location of the filter.
Could you possibly post a pic of it?
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Unfortunately, mine is all back together. This is an older air box but it’s similar to this, rectangle in the corner of the box spring loaded etc. It appears some people think it only opens if the intake tube gets clogged.
