SMOK TFV8 RBA-16 Coil comes with huge deck & airflow. It almost compatibles with all resistance value clapton coils and you can DIY easily. Also the RBA-16 has a premade 0.15ohm Octuple core fused clapton coil with power range is 40-100W (best 80W).
Before starting make sure your hands are clean.
Taking RBA apart.
Installing the pre-wrapped coil.
Place the coil between the posts and wrap the ends around the screws, and tighten up. Once in place, make sure the coil is fixed in the center and lined up with the air hole. Make sure the coil is NOT touching the base.
Position and cut the ends of wire off.
Cut a strip of cotton and make sure it's not too much, and not too little.
Insert the cotton, and place it in the middle.
Cut the cotton at an angle. Make sure it’s not too short and not too long.
Wet the coil with your e-liquid and adjust the cotton. Warning: Coils must be checked for resistance before they are fired on a device, and re-checked periodically to ensure the resistance remains the same.