kayfun is a safe bet. In fact, I just got one today from an eBay seller for $28.50 shipped. There's tons of videos on YouTube on how to build them. 28g wire and some cotton and you're set for months/years.
KTM, I saw the Ehpro V2 Lite with dual air--do you think it's worth it? I like the idea, but since the amount airflow is really controlled centrally, I wonder it that dual air adjustment is really an improvement on the overall air intake or just another screw that may get lost?

Kayfun Lite Plus V2 Dual Airflow Clone by EHPro
ETA: I looked at the pictures of that ebay seller's kayfun and they seem to have two airflow adjustment screws on the bottom; KTM--can you confirm that?
Last edited: