The R34 seats are freakin amazing, but they go for like 2500$ a pair which is just nuts.
The R33 seats are exactly the same as R32 seats, except for the fabric.
The S15 seats hold pretty good, much better then the stock seats and they are very, very comfortable. I like the fact that they look stock cause I don’t want red flashy racing seats that look out of place, I dig the sleeper look.