hmm nothings just its a mod that can make ur gta 4 run smoothly :::)))

:)

Download file then Extract it then paste all the folder , files in the MAIN GAME DIRECTORY...
Replace all files
and also if ur game is dark go in display settings
BRIGHTNESS: 60%
CONTRAST: 65% to 70%
SATURATION: 100%

and before that dont forget to make backup...!!!