Blouch TD05H-18GXT 7cm^2 Turbo Subaru Models (inc. 2002-2007 WRX / 2004-2015 STI)
Investing in a larger turbo as well as supporting mods is one of the best power upgrades you could buy. Blouch is the leader in turbo development; they consistently build the best turbo's. This is a perfect turbo for your 400 HP WRX or STI. The new XT line of turbos from Blouch consists of a billet compressor wheel to optimize the aerodynamics of a turbo and increase compressor flow within the same inducer geometry.
The TD05H-18GXT features the 40 lb/min performance of the Mitsubishi TD06 18G compressor wheel combined with the quick response of the TD05H turbine wheel. To maximize compressor efficiency, the WRX/STi TD05H-18GXT utilizes a true TD06 compressor housing with custom actuator mounting in place of the TD05 housing. Standard wastegate actuator is calibrated at 9 PSI.
To maintain proper boost control, the TD05H-18GXT utilizes a ported turbine housing that is included in the price of the turbo. Like all of Blouch's WRX/STi bolt on upgrades, the TD05H-18GXT is shipped complete with coolant pipes and turbo oil drain tube installed to simplify installation.