pivot air flow controller?

[s13andy]

can you guys explain how the pivot air flow controller works? does it only work for turbos? or na's? or whateva. is it worth it? i havnt heard much about it and was wondering about it. link to the controller (http://takakaira.co.jp/asp/template.asp?cat=2&id=242&prodID=NOoKlLlgiHjfmIh)

[Ryan of Velocity]

I had an older version Pivot ACS on my S13 when I was still in Japan. Piece of crap. lol. Seriously, you can buy a used SAFC for cheaper than that and it's much nicer.