The F28 Professional features 4K cockpit textures as standard. For users who have a graphics card with a large amount of VRAM, we are also providing some replacement 8K cockpit textures: 

IMPORTANT! We only recommend installing the 8K textures if you have a graphics card with 12GB of VRAM or greater. 

To install the 8K textures, please click on the download link below, and extract the files into the following file directory and overwrite the files when prompted: …\Community\justflight-aircraft-f28\SimObjects\Airplanes\Just Flight Fokker F28-4000\texture.VC