How to Install: 
> Extract the mod file in a folder
> Open Binary (if You don't have it: https://github.com/NFSTools/Binary/releases) 
> Choose "User Mode" 
> Choose 'Binary_Data_Install.end file' inside the mod files. 
> Select your game Directory with Binary
> Choose your preference: 1024x decals, 512x decals, extra decals etc 
(Extra decals will require Unlimiter be installed first before this mod) Link: https://github.com/nlgxzef/NFSMWUnlimiter/releases 
> Wait on Binary to install the mod, might take a while
> Save files
> Close Binary, and now you're done.
Have fun!

V4.1:
- Option for 512x decals added 
- The extra decals are now purely optional (will require Unlimiter to be installed first) 
- ACT decal fixed

Courtesy to greedymanul for the help! 