Retrofit: Recaro driver seat or ASS and soot particulate filters

Hello everyone, I play a little with the thought of changing my driver’s seat through a Recaro seat or ASS car seat, there is someone who has already done something like that or has played with the thought and in the end is still afraid of the costs! 😉 I would like to have a retrofit seat with side airbag, since I drive between 45,000 and 50,000km in the year, it would probably be worthwhile, the original Mondeo seat in itself is not too bad, but for Back, for thigh support and for better ergonomic adjustment you might want such a seat of Recaro or ASS!? Furthermore, I ask for information about soot particulate filters, costs and general opinions! Sincerely, Poldi76