Okay, I dont know whats going on with my car but all I know is that... my car boosts at 15 then it creeps down to 12-13 psi.

i hardly get 19psi (stock boost) at all... i do get spikes up to19-21 psi when its soo cold out. and when its about 58+ degrees it goes up to 15psi then falls back to 12-13 psi.

whats wrong with this !?!? i did install a MBC in the car to see if it worked out.. but my boost jumped up to 20psi!! and it was set at a "LOWEST setting."