Well it seemed like Subaru owners may have dodged a bullet with this massive airbag recall by Takata but unfortunately news has just been released to add select model Subarus (and also some Saabarus) to the recall list.  Fortunately most Subarus will not be affected but if yours is, you should be receiving a letter from Subaru instructing you on how to proceed.

If you don’t get a letter you can still check for any outstanding recalls on your vehicle by visiting the safercar.gov recall page and enter your VIN number.

                                                                 Safercar.gov Recalls

Vehicles that may be included

03-04 Legacy,Baja

04 Impreza and WRX

04 Saab 92-X

From what I have read, it may be a while until replacement units are readily available.