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914World.com _ 914World Garage _ Throttle body/plenum holes

Posted by: boxsterfan Mar 31 2014, 11:57 AM

So this weekend, I replaced my TB gasket. No big deal....easy job with a razor blade.

I noticed these two holes (circle in red). Are these supposed to be there and unplugged? Of course, when the TB is in place, you can't really see these but still curious...

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Posted by: dlee6204 Mar 31 2014, 12:32 PM

IIRC those are there to stiffen the plenum. They go all the way through the plenum. So to answer you question, no they don't need to be plugged.

Posted by: championgt1 Mar 31 2014, 12:39 PM

QUOTE(dlee6204 @ Mar 31 2014, 11:32 AM)

IIRC those are there to stiffen the plenum. They go all the way through the plenum. So to answer you question, no they don't need to be plugged.