I'm curious, what does this material look like? ThanksGo down to Wally-World and in the air conditioner section pick up one of the inexpensive green filters. They have a woven mesh on one side and filter material on the other. The filter is about an inch thick. Cut a piece4 about 5" X 12" and fold it in half with the mesh side out now cram this in the hole near the hood hinge (see description in Granite Blue's post # 15 earlier in this thread) it is similar to the material Granite Blue used but much less expensive. pass along the left over filter material to another "Twins" enthusiast, they will appreciate the heads up!