Boosting problems
 

Hi I replaced my turbo and all of a sudden my supra is boosting only 2.5 psi. It also like stutters under full throttle

Check intercooler piping/ intercooler. Sounds like a major boost leak

Yes im sure its ur intercooler piping cause i had the same problem. Make sure there are no tear or rip on the hoses..

Make sure the waste gate isn't sticking too.... not as likely as an intake leak though, but possible.