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Air Box Extension?

dfather99

By dfather99,
in 90-95 WD21 Pathfinders

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dfather99 NPORA Regular

dfather99

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The other day i was looking around the engine, to try and see where i was gonna put a k&n, when i noticed somthing. the pipe the runs along the top of the fan shroud is conceted to the air box. may not be new to you but it is to me. At first i thought it was an over flow pipe for coolant and i thought that was dumb cause it aims right at the battery. Any ways this pipe is cloged by Nissan , so i'm wondering why Nissan put it there (which seems to be my popular question lately :shrug: ). well today i took the plug off and ran the engine no differnce so if anyone has a clue let me know thanks. :beer:

Edited by dfather99
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Mr. Pickles NPORA Old-Timer

Mr. Pickles

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It was put there for sound resonance, to quiet the intake noise. It has no function beyond that. I removed mine and plugged the hole in my airbox where it attached.

Ditto, I just plain removed it and didn't plug it.

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