100%, just did the front lower arms on my car this weekend (not a fun project, more on that later in the Suspension forum). Bought a set from a junkyard off a 96 Mystique and they were 4 bolt/horizontal style. The yard listed the cutoff date as 12/97 for horizontal to vertical. Probably are some after that using the old style as stock was used up.
If you really want to know for sure, just crawl under the car and count the bolts in the lower arm. On the driver's side, there will be 2 under the trans and 2 more further back on the subframe if you have the same type as me. I'll be posting pics of my old arms tomorrow when I get a chance.
