I have created a new afterburner sound effect for the F14-B this simply replaces the old one however be sure to back up the file just in case it doesn't tickle your fancy.
This file is to be used at your own digression.
Make a new folder and name it OLD this should be in the location of CoreMods/aircraft/F14/Sounds/Effects/Aircraft/Engines, place the original file named Afterburner_Rear_Close_New into the folder named OLD, then unzip the file that you have downloaded in the location of CoreMods/aircraft/F14/Sounds/Effects/Aircraft/Engines.
Start DCS world up and enjoy.
Video at:-
https://youtu.be/q9yk6nV82zg