I have been running with stock motor/turbo/inter cooler (TurboXS TBE and up pipe) on a AP 2.0 93 octane map on my 2005 Saabaru (Saab 92x Aero) for a while and pretty happy with it, but always had in mind to upgrade the turbo/intercooler/injectors/fuel pump/boost controller and get a protune.
With so many miles on the motor I am trying to decided on either rebuild, buy a sti short block and run a hybrid setup or say F'it and do a total Ej25 swap to be able to handle up to 300hp at the wheels after all the upgrades and a protune.
This is my daily driver and will be for at least another few years (hopefully). So my question is, will just upgrading my stock block and head internals with forged components and new gaskets be decent enough to handle adding more power? I have heard that running the hybrid setup provides the obvious strength due to the sti short block but it isn't the most reliable?