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19 hours ago, 2001 996 seal Gray said:

So  if you disconnect the small hose and seal off the hole in the box  and put the hose back you basically will accomplish the same thing?   I'm just looking for a little bit more throaty sound I'm satisfied with the horse power.

 

Basically yes.  But I wouldn't do it again myself.  At certain RPM ranges it makes an unpleasant high frequency noise.

That aspect of the airbox is designed the way it is for a reason. 

 

However you seal it up, though, be careful it can't get sucked into the motor!

 

Bill

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Yes. The air going back into the box is just muffled to reduce the sound. If you seal if off you will get a bit more sound at high RPMs.

 

Here is how I did mine using the cap from a quart of Castro Edge motor oil, which just happens to fit perfectly when inverted. Insert the cap upside down and reattach the hose. Done.

 

AirboxMod.png

Edited by wyovino
Updated to add photos.

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