I don't have all of the FIA homologation paperwork for my actual car but it can be found online somewhere from memory for other cars like mine which have been sold previously - you can try the gallery on this old for sale ad which I think has what you are looking for, let me know if this is what you were after - https://bringatrailer.com/listing/2011-maserati-granturismo-mc-gt4/
SportsMaserati.com
StuartW