You don't need 2 versions and you won't be banned. If you're still frightened then just temporarily rename or move the file called dinput8.dll in your gta5 folder, that will prevent any mods from loading. If you don't rename it, you will simply get a warning that you can't play online with a modded system

@Brent10ro Hi.
Ok, first question did you put OpenIV in Edit mode and then drag the 3 guardian files in to this folder:
\mods\update\x64\dlcpacks\mpheist\dlc.rpf\x64\levels\gta5\vehicles\mpheistvehicles.rpf\

Note: if you are not in Edit Mode, none of the replacement files will be copied.

Second question, if you did step one, how are you spawning the replacement vehicle?
What tool/trainer are you using and what is the name of the vehicle you are using to try to spawn?

Note: if you are not using "guardian" as the name it will not spawn.

@astefanidis1 no reason for phone functions to be disabled, start a new game and see if phone works properly. Also, there are more than one saved game files out there so switch if necessary

@mlgpapas131 Actually you can use this with Trevor - that's how I play and in fact you can basically use it with any or most models as long as you name the folder correctly.

@3ELikesToPlay Thanks, but no worries, not urgent

@Ethical Agreed. Having said that, when you go through all these posts from users who are 100% sure they've installed mods perfectly, when they obviously haven't, you realize .oiv would be the best solution for them.

@astefanidis1 I don't use those mods so you'll have to experiment and do some research. You have to be realistic too, the more addon cars you spawn in one session the more likely your game will crash, particularly with large size/high polygon count cars. And the other issue is persistence, despite your best efforts some cars just seem to disappear. Aside from the garage mods, you can also spawn cars and then save them as a map with Menyoo for example or try to save with your gamefile.

Again, i don't use many "non-entity" addons (i.e other than peds and cars), but you might try this:

https://www.gta5-mods.com/scripts/i-m-not-mental-s-persistance-mod

and don't forget to install companion mods to protect you from gang attacks, like the "give em the finguh mod".

@Brent10ro What do you mean by they they stay the same. you mean they are not getting replaced?
Give an example of a mod and exactly how you installed it, ok?
We all make mistakes starting out and even when more advanced and mistakes are why your mods aren't replacing. Good news is that these are easy fixes, but u need to share the information, just saying you have a mods folder and you followed the instructions, as an example, doesn't help.

@JohnFromGWN

@astefanidis1 Your first hiccup! Won't be your last.

As @WGotch07 wrote, you always need to unzip/unpack the mod file.

To add to what he wrote, just to make it perfectly clear, an addon vehicle (as opposed to a replacement) vehicle will always be in 2 parts. The reason I'm specifying this is because the unzipped file could contain many files: the addon vehicle itself but also templates, handling files, pics, instructions, credits etc.

But you will only install the folder which contains the dlc.rpf. In other words. (You can install handling files etc. but let's keep it simple for now).

1. The folder (for example Trossa) - this goes in your dlcpacks folder.
2. The dlc.rpf file inside the folder (this contains the vehicle/model, textures, and various data and meta files - all visible in OpenIV, some just plain text.

The spawn name is generally the same as the Folder name, but not always. And some mods will have more than 1 vehicle in the dlc.rpf (rage package file).

One more thing. You wrote that you created a folder called testarossa. In 99% of cases (give or take) you do NOT have to create the folder containing the dlc.rpf, it is already created for you (and yes, there are the rare exceptions). And you have 2 options for the install: you can just copy or move the Folder to your dlcpacks folder using Windows Explorer or you can do this in OpenIV. The choice is yours.

Ok I forgot, one more. Always put the mods in your mods folder, quite a few older mods will tell you to place them in the games folder. Don't. Put them in mods, always mods whether it is an addon or a replacement.