BTW, the TNX2/NX2 coils are far superior to their 904 X mesh coils that are supposed to be used in the Fireluke 3 tank. I can definitely tell a difference, the 904's don't seem as powerful as the TNX2/NX2 are (same ohms and everything). I'm sticking with the TNX2/NX2 coils. 
P.S. Also the 904 coils give off a whistling noise with the airflow wide open, you have to slightly close the airflow on the Fireluke 3 tank to get it to go away. Don't have that issue with the TNX2/NX2 coils.

P.S. Also the 904 coils give off a whistling noise with the airflow wide open, you have to slightly close the airflow on the Fireluke 3 tank to get it to go away. Don't have that issue with the TNX2/NX2 coils.