not on stock turbo.
280-300hp on stock turbo assembly
intercooler hard piping and upgraded intercooler
3in exhaust
upgraded clutch
bov that can handle 15-20 psi
boost controller
350hp+ on t4 (with everything above)
injectors
afm
fuel cut defender or aem management system
metal head gasket
arp head studs-recommended
there are a few other ways but i cant give away all my secrets...
