Maybe it is a nobb question, but, today i put in my car manual boost controller, and max psi i had was 14.5psi, only in my first stage, my second stage still doind 12 psi. Why my second stage didnt change ?? And then i did other experience, i disconnected hose that comes from wastegate/turbo to regulator and i has 15 psi n my first stage, but my second stage still doing 12 psi. The question is: How do i increase my second stage.
Below i made a video showing how i increased my first stage to 15 psi.
Cheeers
Victor