Set up ScriptHookV
Copy the *.asi, the *.ini, and the LeFixSpeedo folder into the Grand Theft Auto V principal folder.
Please learn the README too, it can assist you configure all the pieces.
Set the settings to your preferences:
-Utilizing the mod menu (Really useful).
-Manually by modifying the .ini (for superior customers).
IMPORTANT!
For a appropriately working RPM gauge and kit indicator the setting Gameversion at Basic has to guess set to 350-372 in case your gameversion is beneath 393, in any other case it needs to be 393+.
Credit:
fubman