Arashi TD05H-20G-7CM Turbo for EJ25 SpecificationsThis Arashi turbocharger has been specially developed for Subaru EJ25 engines. Its power range is between 320 and 420 horsepower. It replaces the IHI VF40 VF46 and other stock VF-series turbos. It features a KBT CHRA (Central Housing Rotary Assembly) which is a TD journal bearing assembly converted to a ball bearing one (with the addition of a restrictor). This turbo therefore combines all the advantages of both systems.This water and oil cooled turbocharger features a machined aluminium compressor wheel which is significantly stronger than a conventional cast wheel. Each Arashi turbocharger is individually balanced under high RPM to eliminate vibration reduce whistling and ensure excellent sealing.Arashi TD05H-20G-7CM Turbo for EJ25 Technical DataApplication : Subaru EJ25 (Impreza WRX GH Legacy 2.5GT/Spec B BL Forester 2.5XT SH)Horsepower : 320 - 420 hpCompressor wheel : 52.5 / 68 mm (11 blades)Turbine wheel : 49.2 / 55.8 mm (9 blades)Compressor housing : 0 77 A/R inlet 2.25 20GTurbine housing : 0.49 A/R 7 cm2Bearing : ceramic ball bearingCooling : water and oil cooledFlange : standard Subaru single scrollActuator (adjustable) : pre-installed 1.1 bar spring (range 0.2 - 1.79 bar)Includes : gaskets extra springs and install kit