EMG pick ups are a great tight sounding pick up for metal stuff and are used by the likes of Mettalica. You need to be aware that they are active pickups and need a 9v battery to operate. This means that you can’t just stick EMG pickups into your guitar like you can with most other brands. The will need to be proffesionaly installed as a hole will need to be routed into the body of your guitar in order to accommidate the battery compartment. This can be major surgery and needs to be done properly. The EMG 81’s do sound good though. Hope this helps.