I believe that 01-02ish there is a difference because I know MAC has them listed differently for the V6's. I think it has something to do with the EGR line fittings. Also, your current pipe will not work with the long tubes, you will need an h or x pipe meant for the BBKs.
I'm looking for a pair of clean, straight 91-93 fenders for my 89. I don't care how the paint is or if they have small dets, but them must be straight and 100% rust free.