These are not official Rockstar products . They are fan-made modifications ("total conversions") and carry the usual risks associated with downloading third-party software from modding forums.
Unfortunately, because PSPISOClub was an unverified, peer-to-peer sharing hub, many links were malicious. Malicious users used the "GTA 4 Exclusive" title as clickbait to get users to fill out spam surveys, download adware to their PCs, or download bricker files that could permanently ruin a PSP's motherboard. The Legacy of PSPISOClub and Underground GTA Culture pspisoclub gta 4 exclusive
The phrase "pspisoclub GTA 4 exclusive" represents a unique intersection of nostalgia, technical ingenuity, and the persistent desire of the gaming community to push hardware beyond its intended limits. While Rockstar Games never officially released Grand Theft Auto IV (GTA IV) These are not official Rockstar products
When searching for exclusive PSP ISOs, users should exercise caution: Malicious users used the "GTA 4 Exclusive" title