If you dont mind noise the 3K ultra kaze cost about 6-7 bucks gota search for that price thoough.
However even turned down they are loud. (one of mine clicks when under volted, others may too I usually just through the rad outside though and not bother listening to it at all

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High FPI? Go with a 38mm otherwise the yate loons are fine. the HS are pretty noisy at high speed but dead silent at lower speeds. But you are not going to have the pressure the 38mm can give you.