SteamSpeed STX 71 Turbo for Subaru WRX 08-14 & LGT 05-09 8cm² (ported) accessory then you'd probably use one

then you'd probably use one of our 3-port controllers

added basic standard bolt-ons

SteamSpeed Turbosmart IGW75 Adjustable Wastegate Pro - FA20 DIT

SteamSpeed STX 82R Ball Bearing Universal Turbo

SteamSpeed STX 67R Ball Bearing Turbo for Ford Focus ST

SteamSpeed STX 71 Turbo for Subaru WRX 08-14 & LGT 05-09 8cm² (ported) accessory then you'd probably use oneUpgrading your turbo is one of the best horsepower increasing modifications you can make for your WRX STI. Also, selecting a turbo with the best components is essential to getting the most out of your investment. SteamSpeed Turbochargers combines the best in advanced compressor and turbine aerodynamics with OE quality manufacturing to produce the STX line turbochargers. The STX line of turbochargers from SteamSpeed feature Garrett GTX style billet