97 SL Air Filter Housing

My son recently bought a 97 Olds Achieva. The car does not have an air filter or any of the housing for one. If someone could direct me to a pic or two of the air filter housing, I would know what to look for at the wrecking yard. It's a 97 SL 2.4L Twin Cam, Thanks in advance.
BTW great forum, the car had a few other issues that I was able to fix by reading the info posted here on these boards.

Pitt