Yeah, the little pipe you see in the pictures is the factory one that ran from the box to the back of the headlight. I just took that off and put my new pipe on it. The stock pipe couldn't have been any bigger than 2 inches at the end. with the new pipe its close to 4 inches, which really increased the air flow. I can't believe GM put a pipe that narrows that much in these cars. It really reduces air flow. I would highly recommend doing something like I did to anyone still using the 1994 or earlier style box. All its costs is 7 bucks in parts from your local home depot and is simple to do and really increases air flow. What I did is bought a 3" to 4" rubber connector and a small 4" peice of PVC.. I had to shave off some of the 3" side to fit my box. Then I put the 4" PVC in the 4" side. I just got dont painting it black so it look pretty custom. Really simple thing you can do to increase your flow.
1999 Oldsmobile Culttlass GLS
SOLD - 1994 Bonneville w/198,000 miles
BC Member 4 Life, or at least until banned