The last turbo you will buy for your Subaru WRXSTI

x500 turboWhat do most people want from a turbo? They want the fastest spool, but don’t want to sacrifice top end power. The X500+ offers both, on an almost unbelievable level. The Boost ControlledThe X500+ Turbocharger is the ultimate stock location solution for EJ-power Subarus. Like the X500, we’ve combined an unparalled quick-spooling turbo matched with hh volume airflow.