Try TrafficControlSystem.
Better alternative but for some reason crashes often on mine
Oh and btw, we have similar rig :D
Only difference is that I'm on GTX670M and running win 7
EDIT: oh and I only have 8GB of RAM and 750GB of SSH
All max except shadows and water. Having 80-90% of the cars replaced,LCPDFR and ELSV7 and some more script. Crashes way too often and if it doesn't crash,texture pop-ins :D
YAY
Will the game crash when using AI ELS and wanted stars goes above 3 stars? I hope not since not having police cars chasing you with flashing lights is weird