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Tomei ARMS MX8265 Turbo - Subaru Models (inc. 2002-2007 WRX / 2004+ STI)
Tomei ARMS MX8265 Turbo - Subaru Models (inc. 2002-2007 WRX / 2004+ STI)
Tomei ARMS MX8265 Turbo - Subaru Models (inc. 2002-2007 WRX / 2004+ STI)
Tomei ARMS MX8265 Turbo - Subaru Models (inc. 2002-2007 WRX / 2004+ STI)
Tomei ARMS MX8265 Turbo - Subaru Models (inc. 2002-2007 WRX / 2004+ STI)
Tomei ARMS MX8265 Turbo - Subaru Models (inc. 2002-2007 WRX / 2004+ STI)
Tomei ARMS MX8265 Turbo - Subaru Models (inc. 2002-2007 WRX / 2004+ STI)
Tomei ARMS MX8265 Turbo - Subaru Models (inc. 2002-2007 WRX / 2004+ STI)
Tomei ARMS MX8265 Turbo - Subaru Models (inc. 2002-2007 WRX / 2004+ STI)
Tomei ARMS MX8265 Turbo - Subaru Models (inc. 2002-2007 WRX / 2004+ STI)

Tomei ARMS MX8265 Turbo

Subaru Models (inc. 2002-2007 WRX / 2004+ STI)

Write a Review | 9 Q&As
Part # TB401A-SB01C
$1,422.00
msrp: $1,580.00

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Features & Product Details

RallySport Direct is proud to provide you with more quality turbocharger options brought to you by Tomei. 

On this page, you are looking at the Tomei ARMS MX8265 Single Scroll Turbocharger. This is Tomei's latest design that features a new CNC billet compressor wheel. This is a good choice if you’re looking to make around 450hp in your Racecar, Rally Car, Overlander or Daily Driver!

Here are the key features:

  • Billet design is a major improvement over traditional cast compressor wheel
  • Machined from aerospace grade materials
  • Thinner blades with a larger surface area for improved airflow and turbo spool
  • Multi-Rate Billet Actuator
  • Large capacity
  • Reinforced forged billet construction
  • Includes 6 springs for fine boost adjustment
  • Swivel-type nipple allows more room for routing hoses
  • Supports up to 450 HP
  • Additional info:

  • Journal bearing
  • Compressor wheel inducer: 54.8mm
  • Compressor wheel exducer: 76.2mm
  • Compressor wheel trim: 52
  • Compressor wheel blades: 6
  • Compressor housing inducer: 55.8mm
  • Compressor housing exducer: 41.5mm
  • Compressor housing A/R: 0.78mm
  • Turbine wheel exducer: 58.8mm
  • Turbine wheel inducer: 67.0mm
  • Turbine wheel trim: 77
  • Turbine wheel blades: 11
  • Turbine housing inducer: 45.0mm
  • Turbine housing exducer: EJ
  • Turbine housing A/R: 0.57mm
  • NOTE: A silicone inlet hose is needed when using this turbo as the inlet is slightly larger than stock.

    Specifications

    Brand: Tomei
    Carb Exempt: [

    Carb Restricted Shipping


    If an Item is CARB exempt it means that it has undergone an engineering evaluation by CARB (California Air Recourses Board) and is shown to not increase vehicle emissions. If an item is CARB Exempt it will have an EO (Executive Order) number associated with it. Even if an item has an EO number it is not guaranteed to be CARB exempt for your vehicle. It is important to confirm that your Year Make and Model fall under the CARB EO number associated with the part. That can be confirmed either by checking the CARB website or the manufacturers website.
    ? ]
    No
    Bearing Type: Journal Bearing
    Cartridge: Tomei
    Fitment: OEM Upgrade
    Gaskets Included: Yes
    Inlet Size: Non OEM
    Oil Line Included: Yes
    Rated Horsepower: 450hp
    Scroll: Single
    Wastegate: Internal
    Mfgr. Warranty: No Warranty
    Condition: New Product
    Return Policy:
    Standard

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    QUESTIONS & ANSWERS

    • Q: Location  Gee2 years ago

      Will this fit on stock location?
      • 0 of 0 people found the following answer helpful

        A:  You bet, this is a stock location turbo, but I would recommend the Tomei turbo inlet hose to go along with this as the inlet diameter on this turbo is larger than stock. Thanks!

        Rick C. @ RallySport Direct 2 years ago  
          
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    • Q: Tomei MX8265 turbo  1012sti3 years ago

      When they say “good for 450hp”, is that crank or wheel hp? How much psi is max?
      • 0 of 0 people found the following answer helpful

        A:  The horsepower would be measured at the crank. The max PSI is not information that is provided to us, but should be somewhere around 1.3 bar.

        Tylo Akiona
          
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    • Q: difference  darkwave833 years ago

      i had the tdo5 20g “fake “ installed im wondering if mx7960 will give same power as tdo5 or less also any info will be appreciated
      • 0 of 0 people found the following answer helpful

        A:  There are many variables depending on your setup, but as a general rule, this would make slightly more power than most 20G setups.

        Marcus E. @ RallySport Direct 3 years ago  
          
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    • Q: what are the difference ?  darkwave833 years ago

      hi, i was wondering what changes they made between the old m8265 and this new model, i have the m8265 now installed its very laggy specially on first gear its kicking full power at 4800 rpm and all other gears at around 4300, i was wondering if this new model have lower spool ? otherwise ill go with the mx7960
      • 0 of 0 people found the following answer helpful

        A:  The biggest changes are an upgraded wastegate actuator and a billet compressor wheel. This will spool better with these changes, although your turbo will typically come on at slightly higher RPMs in lower gears, since the motor is under less load.

        Marcus E. @ RallySport Direct 3 years ago  
          
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    • Q: Boost  22_STI_Tbriggs3 years ago

      on a 2019 STI, what modifications would be needed in order to put this turbo in so that i dont blow the engine?
      • 0 of 0 people found the following answer helpful

        A:  We would recommend engine management, upgraded injectors, fuel pump, and a protune.

        Michael N.
          
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