Install ScriptHookV Copy the *.asi, the *.ini, and the LeFixSpeedo folder into the Grand Theft Auto V main folder.
Please read the README too, it will help you configure everything.
Set the settings to your preferences:
-Using the mod menu (Recommended).
-Manually by editing the .ini (for advanced users).
For a correctly working RPM gauge and gear indicator the setting Gameversion at General has to bet set to 350-372 if your gameversion is below 393, otherwise it has to be 393+.