[silicon212]

You should be able to adapt a '94-'96 LT1 true dual/dual cat setup with almost no problem at all. I discovered that the LT1 exhaust manifolds should in fact fit a standard small block. You will need to obtain the entire setup, from the manifolds to the tailpipes, including cats (you will likely have to buy these new). You will also need to adapt the '94-'96 trans crossmember to the car you have - you need to weld an angle iron to the left frame rail in order to give that side of the crossmember something to bolt to - but that's about the only mod you will have to do. The rest is plug-and-play.

I went a single-cat setup, but fabricated a Y-pipe using LT1 components on my own car, which is an '88.