yeah a boost controller can only lower boost as low as the wastegate springs will allow

 

I'm selling profec B Spec II for 250. Let me know.

 

Somewhat on-topic, who wants to esplain the difference in the function of boost controllers? I believe one pulls boost away from the wastegate thereby leaving it open for more air to continue to flow than the spring is set for, and the other keeps the spring compressed longer. I was told that the kind of boost controller I have (Turbo XS Manual BC) limits me to double the wastegate spring. I hit 15 psi on a 7.5 lb spring, and I've seen someone else witht he same BC hit 18 psi w/ a 9 psi wastegate spring. Thanks!