Arashi TD04H-13T-6CM Turbo for EJ20 & EJ25 SpecificationsThis Arashi turbocharger has been specially developed for Subaru EJ20 and EJ25 engines. It can support more than 240 horsepower. It replaces the stock TD04L turbo (part no. 49377-04100 49377-04200 49377-04300 etc.). It features a CHRA (Central Housing Rotary Assembly) with journal bearing optimised by Arashi for superior performance.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 TD04H-13T-6CM Turbo for EJ20 & EJ25 Technical DataApplication : Subaru EJ20 & EJ25 (Impreza WRX/STI GC GD)Horsepower : 240+ hp maxCompressor wheel : 40.8 / 56 mm (6+6 blades)Turbine wheel : 44.2 / 52 mm (12 blades)Compressor housing : 13TTurbine housing : 0.41 A/R 6 cm2Bearing : journal 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