there is a page on the web //jdturbocharging.com and he claims to have run 7 psi on a t3 with .63 an intercooler and an fmu and no management or spark modifications whatsoever and made 218 atw and 0-60 increased from standard 7.4 to 5.9 and 1/4 mile from 15.4 to 14.2. but says he was on the limit of fueling so hopefully il make a bit more than that 1 psi more boost, a bigger turbo and more fuel