It's me again. First track mod of 2017. All my acquired knowledge went into this, it's been tweaked for 3 days.
Nothing else to say, just watch the video for a comparison. You'll notice the difference more by playing it though:
Download the file, extract Jerez.mix and copy paste it under MotoGP17/Tracks overwriting the default Jerez.mix
Jerez 2017 Track Mod 2017
Lighting and Textures mod