I have discovered that you can do quite a lot with them. If I can find a good belt, I would probably spend a little more to upgrade it. First, it needs to keep making boost, then I wouldn't mind sending it out for a little more love. I bought the unit used about 7 years ago. I finally got back around to working on the car and finishing up the install a couple days ago. It worked great and the car ran really well, then the belt broke. The car still runs well, but I sure miss that extra atmosphere! Hopefully with a fresh upgrade belt, it will live a little longer...