Yes, but load order matters. Install the HD pack first , then other texture mods. If a mod replaces HK_Characters.pak after, you will lose HD improvements for that asset.
: Sometimes, game developers release additional content or updates through their official websites. You might want to check if United Front Games (the developer of Sleeping Dogs) has any resources or updates available.
For non-Steam or updated retail versions, the "download" process is often integrated or requires manual configuration: Compatibility : Ensure you are using the Original version of Sleeping Dogs. The Definitive Edition
