First, FIFA 23 is the game in question. The platform is PlayStation 2 (PS2), and they're talking about an ISO mod. The user mentioned "best" so they probably want the best possible mod for FIFA 23 on PS2 using an ISO file.
But wait, FIFA 23 wasn't released for PS2. The original FIFA games on PS2 went up to maybe FIFA 18 or 19. FIFA 23 is a newer version, and the PS2 is much older hardware. So there's an inconsistency here. The user might be confused or there's a mistake. FIFA 23 is only available on PS4, PS5, Xbox One, Xbox Series X/S, PC, etc. The PS2 is obsolete in terms of hardware for such recent games. fifa+23+para+ps2+iso+mod+best
Next, ISO mods. Modding an ISO typically involves altering the game's data without changing the physical disc. However, PS2 games stored data on CDs/DVDs, and modding them usually requires some sort of memory card modding or using a mod chip. Also, PS2 has some region lock issues, so getting a game to run in a different region might require a mod chip or other methods. First, FIFA 23 is the game in question