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Blouch Dominator 2.5XT-R 8cm^2 Turbo ( Part Number:BLC DOM2.5XTR8CM^2)

Blouch Dominator 2.5XT-R 8cm^2 Turbo - Subaru Models (inc. 2002-2007 WRX / 2004+ STI)

Manufacturer Part # DOM2.5XTR8CM^2


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When it comes to aftermarket turbochargers for this particular platform, Blouch Performance Turbo is among one of the more popular choices among enthusiasts because they are built using careful manufacturing methods to produce a more powerful direct bolt-in option. On this page, you are looking at their Dominator 2.5 XT-R 8cm2 Turbocharger.

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 turbos. 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.

The features of this turbocharger allows you to build more horsepower at lower boost pressure. Other features include a 55 lb/min fully machined billet compressor wheel, a high-efficiency Garrett GT turbine wheel, Garrett GT full ball bearing system, and an adjustable upgrade wastegate actuator that is calibrated at 15 PSI with their new 8cm2 bolt on turbine housing.

Rated to make up to 490 crank horsepower.

Included with this turbocharger will be the coolant and oil drain pipes, along with a stainless steel oil feed line along with new gaskets and hardware to make this turbocharger ready for the installation.


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Brand: Blouch
Bearing Type: Ball Bearing
Cartridge: Garrett
Exhaust Housing Size: 8cm
Fitment: OEM Upgrade
Gaskets Included: Yes
Inlet Size: OEM
Oil Line Included: Yes
Ported Turbine Housing: Yes
Rated Horsepower: 490hp
Scroll: Single
Wastegate: Internal

Mfgr. Warranty: 6 months / 6,000 miles
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.



This product has no user uploaded media. You can upload your photo or video of your install by posting a review. Reviews:

Good power
Pewwwsubie 3 years ago
Was able to get 410whp with 390tq on pump gas 92. 24psi with supporting mods. No cams.

awesome street turbo
boosted06sti 4 years ago
Just got my car back from having this turbo installed along with CP pistons and Carillo rods. Car made 405whp & 415tq on pump gas. More to come with E85.

  • Q: Break-in  kiiiiim 1 month ago


    Does this turbo need a break-in before tuning or can the car be tuned right after installation of this turbo? Thanks!

    • A: These do not require a break in period, but make sure to prime the turbo before running the vehicle.

      Marcus E. 1 month ago
  • Q: Header  09Jorge 5 months ago


    Would I need an after market header to run this turbo?

    • A: This will work with stock manifolds or aftermarket headers, as long as they retain the stock turbo location.

      Marcus E. 2 months ago
  • Q: Banjo bolt  Kaledoherty85 12 months ago


    I am looking st buying this turbo. But do I need to purchase a banjo bolt for the oil feed lines? I havnt seen any mention of it on here. Or is there a different method to this?

    • A: You will reuse the banjo bolts for this turbo, though most people end up replacing them upon installation.

      Tyler A. 12 months ago
    • A: Tyler I have done more research and apparently won't use the banjo. But there is a restrictor fitting that comes with this kit?

      Kaledoherty85 12 months ago
  • Q: 1.5 vs 2.5  travelguy2k 1 year ago


    How would a 2.5 with an 8cm compare to a 1.5 with a 10cm compare for spool time and flow?

    • A: The 2.5 is definitely going to be slower compared to the 1.5. Flow wise though you are going to improve the power band and you are going to be able to achieve higher numbers with the 2.5. It all just comes down to whether or not you want big power with a little slower spool time, or more of an instant feel with less HP.

      Tyler A. 1 year ago
    • A: I have 3.5xtr with a 10cm hot side. I am trying to downsize without loosing much power but have less lag. Im at 410/415 right now. Trying to find out if a 2.5xtr with a 3" inlet and a 8cm hot side exists, this might be the best of both words. the difference between the 1.5 and the 2.5 is only 10hp but if the spool is that much different i might be inclined to go with the 1.5.

      travelguy2k 1 year ago
  • Q: Ceramic coating  The Autobahn 2 years ago


    Is a caramic coated Turbine housing available? When will be the new design Compressor housing available?

    • A: You can have ceramic housing if you were to pay the extra fee from Blouch, and Blouch hasn't released an updated compressor housing for this turbo. So I am sorry I am not sure when they plan to update this.

      Chris W. 2 years ago