So if I get a boost guage, then a boost controller, what is safe boost for a stock turbo? 14-15? Is stock about 11? And what if I turn it up to high? KABOOM? I mean, can I turn it up to high or what? I must be able to >>?? Also - how would I know that it is up to high? When the guage pushes 20psi and the engine blows or what?