Front and rear.
Yep, It was a pretty penny but it was for my wife so she was happy. BTW, they were seats that were brand new, not a wrinkle on them.
I'd have kept cloth myself, much better for autocrossing and in the 110 degree heat.
I'd definitely consider good streetable racing style seats if I had to do it again. Not the cheapo Tenzo crap either.
If you want good leather covers then for $6-700 you can get katzkin ones.
Those other "slip fit" ones look like trash, people just convince themselves they look ok.