Does he play games ? If so his anger will increase more and more , If you lag and play with bad people your son might turn violent soon . Please reduce his gaming hours !
If he doesn't listen, then do what needs to be done ! Scold him !
It hurts to face the fact, but the fact is a teenage boy's attitudes are exactly what his mother has taught him, but more emphatic. And it's 14 years too late to try anything else.