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Blouch Dominator 2.5XT-R 10cm^2 Turbo (Part Number: )
Blouch Dominator 2.5XT-R 10cm^2 Turbo (Part Number: )
Blouch Dominator 2.5XT-R 10cm^2 Turbo (Part Number: )
Blouch Dominator 2.5XT-R 10cm^2 Turbo (Part Number: )
Blouch Dominator 2.5XT-R 10cm^2 Turbo (Part Number: )
Blouch Dominator 2.5XT-R 10cm^2 Turbo (Part Number: )
Blouch Dominator 2.5XT-R 10cm^2 Turbo (Part Number: )
Blouch Dominator 2.5XT-R 10cm^2 Turbo (Part Number: )
Blouch Dominator 2.5XT-R 10cm^2 Turbo (Part Number: )
Blouch Dominator 2.5XT-R 10cm^2 Turbo (Part Number: )
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Blouch Dominator 2.5XT-R 10cm^2 Turbo (Part Number: )
Blouch Dominator 2.5XT-R 10cm^2 Turbo (Part Number: )
Blouch Dominator 2.5XT-R 10cm^2 Turbo (Part Number: )
Blouch Dominator 2.5XT-R 10cm^2 Turbo
Subaru Models (inc. 2002-2007 WRX / 2004+ STI)
Read 6 Reviews | 29 Q&As
Part # DOM2.5XTR

Product will ship from manufacturer

Features & Product Details

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 XTR 10cm2 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.

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 XT-R "Polka Pickle" and is pre-calibrated to operate at 15 PSI unless otherwise specified.

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.


Brand: Blouch
Bearing Type: Ball Bearing
Cartridge: Garrett
Exhaust Housing Size: 10cm
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.



6 Reviews
5 out of 5 Stars
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Customer Photos and Videos
Blouch Dominator 2.5XT-R 10cm^2 Turbo ( Part Number: DOM2.5XTR)
Blouch Dominator 2.5XT-R 10cm^2 Turbo ( Part Number: DOM2.5XTR)
Blouch Dominator 2.5XT-R 10cm^2 Turbo ( Part Number: DOM2.5XTR)
1 of 1 people found the following review helpful
Dom 2.5 xtr STI 2 years ago
5out of 5stars

Awesome turbo. Makes more power then the 1.5xtr. Full boost 20.7psi at 3700 rpms. 356whp 350wtq on a Mustang dyno 91 octane tune. Never enough power for me so get the 3.0 or 3.5 xtr lol
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410 whp! 4 years ago
5out of 5stars

I'm fairly happy with this turbo! I was only expecting about 370 whp but my tuner was able to get 400+ to the wheels running 22-23 psi. Spools up pretty quick and good for a daily. Definitely worth the price!
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3 of 3 people found the following review helpful
good turbo  5 years ago
5out of 5stars

don't know this gonna help any one,but i just have this turbo install in my 2011 sti. dyno i got 422 whp 419 tq and 22 psi on 91 fuel which i very happy for my set up. what i have is id 1000cc injector. 265 fuel pump. TGV?perrin exhaust manifold. invidia dp exhaust, grimm speed up 44 mm wast gate, perrin fmic. i have a 2.75 inlet, but my tuner say if i go for a 3 i will get 10 more hp which i do and i car run very well much easy to drive, sound very nice after i use the perrin manifold, it hits very hard on the 4300rpm, with the stock motor, and i i get this turbo bucuz i tuner say is very good, so i go for it, and i like a lot with the number, and they say if i go for e85 will easily get over 500 whp, i hope the this will help people who want to good turbo, for the stock location,
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4 of 4 people found the following review helpful
Awesome, but 10cm might not be the sweet spot for a Daily Driver 6 years ago
5out of 5stars

I bought this for my 2009 WRX with a Perrin FMIC and tons of other mods/built motor. The turbo is very quality but some of the finishing could have been a touch better for the price. This turbo fits well, but the compressor housing is rotated clockwise slightly, which made matching it up to the PERRIN FMIC piping tricky. What I love about this turbo- It hits very hard when it spools up... but spool up on my built motor with PERRIN ELH is about 4500RPM (FMIC is also a factor). It pulls all the way to redline (7250 on my build), and I hit 350WHP on a DynaPack (similar to Mustang) at 22psi on Cali 91. (brand new motor, conservative tune, old gas) I bought this to run E85, and we expect over 400WHP on the same dyno based on what we've seen. I can tell you that the car is a different level of fast than stock VF52 with Stage 3 TP Tune. The numbers don't tell the story!! Is the 8cm better? I think the 8cm will give you spool more like what you are used to on the stock WRX. The hard torque hit at 3500 or so and shifting by 6500... for a daily driver, point and shoot, this might be a little more fun. My particular car is built and tuned for track days, where I'll be up in the revs more, but as a DD I'd wish I had the smaller hot-side. (although the later spool has me driving slower). Pros: 4.5-star build, 5-star performance. BALL BEARINGS, SPOOLS LIKE JET FIGHTER (once up to speed). Included internal wastegate works very well at 22psi. My car feels great! (I see taper to about 20psi at redline). Cons: Later spool than I expected... maybe the FMIC, maybe the 10cm? I can't wait for E85!
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1 of 1 people found the following review helpful
Awesome Turbo! 6 years ago
5out of 5stars

Just installed this on my 2011 sti along with ID 1000cc injectors and a walbro 255. Had some minor fitment issues with the factory TMIC but i suggest doing a FMIC with this turbo anyways, which is next on my list. after a custom tune, this turbo pulls hard and the spool up sounds amazing! Very impressed
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  • Q: 2.5" vs 3" inlet and 10cm vs 8cm housing on 2.5 XTR  Wayne3 months ago

    Hi, I am looking at the 2.5 XTR to deliver a good balance between maximum power with the lowest possible spool, on a 2011 WRX build including forged and closed deck short motor, fully ported / polished and bench flowed heads, poncam cams and adjustable exhaust cam gear, GSC beehive valve springs, FMIC, Process West inlet manifold, Killer B ELH, Invidia Q300 TBE and on E85. I have seen a report of this turbo achieving 480WHP at 28PSI on a similar good build. Can you please confirm if this is achievable, and if 3" inlet and 10cm housing would better help me achieve this purpose for highest power goal and what would the impact be on spool? Many thanks in advance.
    • 0 of 0 people found the following answer helpful

      A:  Your dyno numbers will vary based on many factors, including the tune, quality of the ethanol, elevation, ambient temps, etc, so we can't really offer an official guarantee. However, I'd say the Dom 3.0-4.0XT-R would be Blouch's best options for your setup. The larger exhaust housing and inlet will be best for peak power, but you'll sacrifice spool for the top end that they provide.

      Marcus E. @ RallySport Direct 3 months ago  
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  • Q: Which Turbo  YoshiSTi6 months ago

    Im wondering what will be the best turbo for my setup, I have a 2006 STi, a IAG Stage 2 block, Crawford AOS, Killer B oil pickup, BC 272 cams, BC Stage 2 valves, ACT heavy duty clutch kit with a ACT streetlight flywheel, Cobb 3 post boost solinoid, AEM 320lph fuel pump, Perrin turbo inlet, and planning on getting ID 1300cc injectors and also plan on going with a Cobb flex fuel kit. What turbo would you recommend to get me near 500 whp on e85 or 400whp on 91?
    • 1 of 1 people found the following answer helpful

      A:  With your setup, you will be cutting it close with this turbo. If you would like to make sure you're above 400 whp on pump gas, you might want to look at a Dom 3.0 or an FP Red.

      Karsten B. @ RallySport Direct 6 months ago  
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  • Q: Is there a rebuild kit for this turbo?  Lagg-Alot11 months ago

    Need to rebuild this turbo, where can I find a kit with all the stuff I need?
  • Q: Dom 2.5 xtr  Awag242 years ago

    Will this turbo produce more power then the dom 1.5xtr?

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