i have an s4 tranny sitting in my garage that someone gave me, but i dont know what its from.thanks

 

You mean from a B-series engine? Or an Audi S4?

Anyway, if you look up the specs of B-series trannies:
1) B16A's come with S4C, S80, Y80, or Y21 trannies depending on year and domestic market.
2) B16A2's and B16A3's come with SC4 or Y21 trannies depending on year and domestic market.

That's all I see listed there with anything resembling "S4" in the name.

Note: I didn't type it wrong. In #1, I typed S4C and in #2, I typed SC4.

 

edit: sorry thought you said s1