This is just a random relief...
Since I've purchased my car I've had nothing but problems, but slowly and slowly bringing it up to par. I've done compression tests, I've done boost leak tests, I've replaced a few things here and there. But the most annoying thing was my boost would taper. From what I read and what people tell me it's not suppose to because I'm on MBC. I've tried a FORGE MBC, no go because it as a stiffer spring. Worked fine on my friends 9, but he's running 30psi. I'm only running 1.4bar. 22psi.

So I changed out the vacuum lines(boost leak test) and I've tried adjusting it. Still would taper from 1.4 to 1.1-1 bar. So I did some more research and learned that I have to adjustments on my boost controller. A coarse and fine setting. I thought I had a basic spring and ball bearing MBC. But no. I have a Turbo XS HPBC. Long story short 1.4 bar and holding all the way to red line! Love it!!!

But I'm definitely going back to EBC.