While technically cheating, the repack includes a "New Game+" option that unlocks legendary outfits (like Bruce Lee’s yellow jumpsuit and the SWAT armor) from the start, bypassing the tedious Facebook-like "Social Hub" requirement of the original.
Square Enix (now owned by Embracer Group via acquisition) is notoriously litigious regarding Sleeping Dogs. While they haven't pursued individual downloaders, they have successfully shut down multiple archive.org links hosting the "Original Lighting" mod that the Kuyhaa exclusive relies on. Downloading the "Exclusive" puts you in a gray area regarding the DMCA. sleeping dogs kuyhaa exclusive
If you want what the Kuyhaa exclusive offers (Original lighting + DLC + Stability) without the viruses, here is the legitimate path: While technically cheating, the repack includes a "New