What is the name of the rusty pipe in the photo below? It's a 2000 Malibu with a 3.1.
http://picasaweb.google.com/lh/photo/g3gTYJQVVUG86GKQLgyRspNI4D1ZCVBHGdmCgqGXr6s?feat=directlink
http://picasaweb.google.com/lh/photo/g3gTYJQVVUG86GKQLgyRspNI4D1ZCVBHGdmCgqGXr6s?feat=directlink