Dirt 3 mods are amazing in every way, and it's really good to have them, especially if you want more from the game that the vanilla version can't or did not provide.

Ahh, good ol' graphic mods make the game more detailed with everything they have, HQ textures, improved lighting, post-processing, etc. Here are a few mods.

Reshade
Reshade is a post-processing injector that can make games look amazing. If you want to know more, here's the description from their website.

"Reshade is a generic post-processing injector for games and video software developed by crosire. Imagine your favorite game with ambient occlusion, real depth of field effects, color correction, and more ... ReShade exposes an automated and generic way to access both frame color and depth information (latter is automatically disabled during multiplayer to prevent exploitation) and all the tools to make it happen.

The possibilities are endless! Add advanced depth-edge-detection-driven SMAA antialiasing, screen-space ambient occlusion, depth of field effects, chromatic aberration, dynamic film grain, automatic saturation and color correction, cross processing, multi-pass blurring ... you name it."

Reshade[reshade.me]

Note: You should make sure you do this before installing Reshade.
"First of all! If you want to use DX10/11 Just disable anti-aliasing in-game!

If you want in-game anti-aliasing, just use DX9 mode.
Go To C:\Users\User\Documents\My Games\DiRT3\hardwaresettings

Open this hardware_settings_config and change <directx forcedx9="false" /> Into true."

Since MrCheesecake's comments are hidden on the D3 video, I uploaded the post process folder, which I managed to find it. I think it was from Dirt Rally, but damn, it looks good!

Google Drive Link[drive.google.com]

I'll think I will bring this up, skin mods are a replacement for unwanted skins like...Osiris! I don't hate the livery, just not a big fan of it. Here's a tutorial of how to change DiRT 3 skins. (That video is 3 years old, so he is probably using GFWL. (or cracked because I saw a DiRT 2 Repack in his folder.) To find your DiRT 3 folder, go to C:/Program Files x86/Steam/steamapps/common, then click "DiRT 3 Complete Edition" And wala! You're there!

I recommend using Rallygamer's website, he has TONS of skins for different games! http://www.rallygamer.com/downloads.php This is his youtube channel. https://www.youtube.com/user/RallyGamerMedia He is active! Here's one of his videos using one of his skins on the raid lancer.

Below is without the Post-Process mod. Below that is with the Post-Process mod.

Like always, I'd save the best for last, here is...THE ULTIMATE MOD! WITH THIS MOD, YOU CAN HAVE SNOW ON BATTERSEA!

If you want Steam Library covers, since the game doesn't have them, here you go. Full credit to Victor Hernández, aka captainbutters on ArtStation.

DiRT 3 Steam Library Art[www.artstation.com]

You can join my group, which I just created, a GTR2 Guide could be on the way!

http://steamproxy.net/groups/VantageClub