sard manual boost controller

[monsterv6]

hey guys/sifu..need some advice.
anyone know how is this sard manual boost thingy,is it stable?
is it better then the rest of the manual boost controller like turbosmart/gfb?need advice.

 

[huakenny]

u wanna confirm the function before buy from Kent ar? ehaha....but i think Branded Boost controller is Ok/stable/Reliable one