Blouch Dominator 4.0XT-R 10cm^2 Turbo 2002-2007 WRX / 2004-2021 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. The new XT-R 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. This allows you to build more horsepower at lower boost pressure.
It also consists of a 60 lb/min fully machined billet compressor wheel, a high efficiency Garrett GT turbine wheel, Garrett GT full ball bearing system, adjustable upgrade wastegate actuator calibrated at 19 PSI and Blouch's new 10cm2 bolt on turbine housing.
The larger turbine housing reduces turbine inlet pressure and increase peak horsepower output.
NOTE: The Dominator 4.0XT-R is a bolt-on upgrade which requires a 3" inlet, TGV deletes and requires no modification to oil feed, oil drain, coolant or exhaust connections for installation.