Solution for Old-gen seats except retrofitting with New-gens?

[ChooseAnother]

I am not happy with my old-gen seats side bolsters. They are not enough. What can i do for them like after-market?

 

[gabeincal]

Sounds like you just purchased an old Tesla and you're not happy about many things Welcome to the club.

Many companies can do custom seats and 'stuff' more cushioning in your seats. Not sure about Bulgaria though, but I'm sure there are some available around your area, you just have to research. There is nothing special (AFAIK) about Tesla seats and any firm that does generic car seats should be able to work on them.