The premise of the user's request ("Sin Emulador") is based on a technical misconception.
Intel i5 o AMD Ryzen 5 de generaciones recientes. Gráficos (GPU): NVIDIA GTX 1050 o superior. RAM: 8 GB o más. Descargar Gran Turismo 4 Para Pc Sin Emulador
Since a native PC version does not exist, downloads claiming to offer this are highly suspicious. The risks associated with searching for and downloading these files include: The premise of the user's request ("Sin Emulador")
Sony has kept the older Gran Turismo titles exclusive to their original hardware. Unlike newer PlayStation games (like God of War or Horizon Zero Dawn ), GT4 never received an official PC port. RAM: 8 GB o más
If you'd like a helpful article explaining why GT4 can't run natively on PC and how to safely experience it or similar games, I’d be glad to write that for you. Just let me know.