94 A4. I just replaced my ripped stock elbow with a 1LE. I ordered it from Jason Cromer, gave him part # 25147187 which I got from a thread on this board. When I was swapping them, I noticed a difference. Right in the middle of the bend on top (not on the outside where the sensor plugs in) there's a molded hole. It's not an accidental hole it's like on top of a cylinder shaped protrusion. Did I order the wrong one?
The hole wasn't on my stock one, so I plugged it with a nipple from the old one and some epoxy.

 

If its the hole im thinking of its for an opti vent tube on the 95 up models. plug it and youll be fine

 

the 1le intake elbow just saves some hp by blockin the hole for ya

 

exactly- for vented opti - just plug it

 

The proper number for a 1994 1LE elbow is 25147210, but just plug the hole as suggested and you will be fine.

 

I filled mine with black RTV. let it dry overnight and you'll be good.

 

Thanks, I plugged it before I even started the car and sealed it with epoxy. Appreciate the feedback guys.