radio drivers and going back to stock rom
I'm currently on 4.2.2 and plan to root my phone for the first time.
I'm sure there's enough written about how to do it so i will find my way in that.
I'm just wondering whats the relationship between roms and drivers.
If i install cyanogenmod 11 for example.
Does this come with new drivers for my Phone?
And if i go back to stock rom, will it go back to the "stock" drivers or will it keep the updated drivers from that rom I once installed?
I'm a bit paranoid about downloading a rom that will mess with Radio drivers in my Phone,
because i dont want the Low sar value of my Phone to increase.