Hey my car came with this and i dont know how to use it. Firstly I want to lock my boost at 9psi.

Can anyone give me a run down on its functions. It looks pretty basic with just 2 buttons. Thanks.

 

Yeah, I have it on my gs-t. There are four setting, you turn the **** to scroll though 1,2,3,4... To set to 9 lbs, use the setting number of your choice. Hold down one of the buttons, I think the left if I remember right. Use the other **** to adjust the boost. Now here is where it gets complicated. The boost works on precentages, So 30 is 30 percent more than stock boost. You will have tokeep doing trial and error until you get the right amount of boost. Good Luck!