Featuring the 44 lb/min compressor performance of the Mitsubishi 20G in a true TD06 compressor housing with custom wastegate actuator mounting, the WRX/STi TD05H-20G provides 440 HP potential in a custom performance bolt-on package. The TD06 20G compressor is paired with the Mitsubishi TD05H high flow turbine in 7cm2 nozzle area turbine housing to provide the fastest possible response characteristics. Standard wastegate actuator is calibrated at 9 PSI and optional upgrade actuators are available in incremental pressures from 10 PSI to 19 PSI. To maintain proper boost control, the TD05H-20G utilizes a ported turbine housing that is included in the price of the turbo. The WRX/STi TD05H-20G custom performance turbocharger is a direct bolt on upgrade shipped complete with coolant pipes and turbo oil drain tube installed and requires no modification to intake, exhaust, oil and coolant connections for installation.