The X500 Turbocharger is a stock location solution for all Subarus from mild to fully-built. Our unit has been tested and proven to provide big power results without loosing much response. Using a proprietary compressor wheel design we have produced spool within 500 rpm of a stock turbo (8cm turbine) while providing insane airflow to redline. The turbo is capable of up to 500whp on E85 and easily makes 400+ on 93 octane. With a stock inlet size, it truly is a bolt-on unit. Turbo includes everything you need to install including our SureSeal © multi-layer gaskets to ensure leak-free operation and brand new downpipe studs. Assembled locally in Michigan. See tuning results below!