Installation instruction:

Su-27/33
- Navigate to the main "DCS World" folder.
- Open \Bazar\Textures and look for "Su-27.zip"
- Backup it
- Open "Su-27.zip" with tool like 7-Zip
- Replace "su-27_afterburn.dds" in it with the mod-file

J-11
- Navigate to the main "DCS World" folder.
- Open \CoreMods\aircraft\ChinaAssetPack\Textures\J-11A and look for "J11a_afterburn.tga"
- Backup it
- Replace it with mod-file

That it!

The Mod doesn't pass integrity check!