tons of bad info here, first off you cant just say sure you can run 8 psi safely b/c the amount of airflow at 8 psi differs from one turbo to the next (quick example, a evo3 16g will flow less at 8 psi than say a 50trim, simply b/c the turbo is bigger), so depending on the turbo you use will depend on a safe amount of boost to run, but all in all boosting=safe w/ the right components, i turboed my old z6 civic coupe, ran 7psi on a t25 and never had a problem with the car