cop car parts

In California Is it true that if you go over 120mph, the cops won’t try to pull you over?
I’ve heard that there is a certain speed (possibly 120 mph) that if your car is traveling over, the cops will not attempt to pull you over (either because it is too dangerous or they can’t go that fast). On top of that, do cops modify their cars with aftermarket parts? If so, what kind of tuning/ parts do they have in them?
Some police will not bother to pull out, however, that doesn’t mean your in the clear. I can assure you that you can not beat the radio. All it takes is for him to radio ahead to another unit to get ready for you. And yes police cars have modified engines and other parts to boost performance. The specs depend on the vehicle.
2006 06 Impala police car for parts 3.9
