I have ordered a hks fcd to prevent fuel cut and also have ordered a high quality manual boost controller ball bearing type to prevent boost creep. I have a ct9 turbo, stainless manifold and front mount. 1. Would I need a fuel pressure regulator if I am only running 0.8- 0.9 bar boost. I am to set it once and leave it to 0.8-0.9 bar no more no less. ******2. If I run at 0.8 do I even need the fcd or fpr?? I'm happy with using the manual boost controller for just 0.8 bar 12 psi boost..... Thanks again appreciated its all a learning curve