A lot of you have been tracking the development of this product in my thread: Developing a mass airflow sensor (MAF sensor) housing for custom air intakes. These are now for sale. These can be used to make your own custom intake for your Mirage.
What you get is what you see above, it is a MAF sensor housing. It will clamp to the OEM rubber U-shaped tube as shown in the pictures below. Then, you can add whatever you want for your own intake. Both of the ends of the housing are 2" in (outer) diameter.
Here are some images of the intake kit I put together for testing the MAF housing: