Blouch Dominator 1.5XT-R 8cm^2 Ceramic Coated 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. 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.
All of this combined with Garrett GT turbine and full ball bearing technology to produce a complete bolt-on package that includes stainless steel turbo oil feed line and steel oil drain tube and coolant lines. Adjustable upgrade actuator is standard issue on the 1.5XT-R and is pre-calibrated to operate at 15 PSI unless otherwise specified. The 1.5XT-R has a 56mm turbine to promote better spool up and a better overall turbo.
With the 8cm^2 housing this turbo will spool up slightly faster than the 10cm^2 version of the 1.5XT-R. With the faster spool comes a slight loss in the top end.