Featuring the Mitsubishi Big 16G compressor wheel that has been popular with the DSM crowd for 10+ years, the WRX/STI TD05H Big 16G delivers 375 HP potential combined with the high flow capacity and quick response of the TD05H turbine wheel and internally gated 7cm² nozzle area turbine housing. Standard wastegate actuator is calibrated at 9 PSI and optional upgrade actuators are available in incremental pressures from 10 PSI to 19 PSI. Our complete in-house machine shop performs all necessary machine shop operations to precise tolerances to maximize turbocharger efficiencies and provide our customers with the best possible product and customer service. To simplify installation, the TD05H-Big 16G custom performance turbo is shipped complete with coolant pipes and turbo oil drain tube installed and requires no modification to intake, exhaust, oil and coolant connections for installation.