Why dont alot of people use them. I think they look nice .

 

Because they're expensive as ****, not as comfortable as stock GS-R or S2000 seats and designed for people who will need the support. Same reason people buy rotas instead of mugens or spoons: almost the same effect and less expensive.

 

well compared to Recaro JDM seats. (well ctr or itr)

 

Sparco's are nice, I would buy them for my car.

I like the non-reclynable tho