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Omni Power 4 Bar MAP Sensor (Part Number: )
Omni Power 4 Bar MAP Sensor (Part Number: )
Omni Power 4 Bar MAP Sensor (Part Number: )
Omni Power 4 Bar MAP Sensor (Part Number: )
Omni Power 4 Bar MAP Sensor (Part Number: )
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Omni Power 4 Bar MAP Sensor (Part Number: )
Omni Power 4 Bar MAP Sensor (Part Number: )
Omni Power 4 Bar MAP Sensor
Subaru WRX 2006-2007 / STI 2004+

Features & Product Details

RallySport Direct carries a great selection of quality MAP sensors brought to you by Omni Power. 

Anytime you want to run more boost than factory levels then you must upgrade the MAP sensor.

On this page, you are looking at the Omni Power 4 Bar MAP Sensor. This is a boost sensor that measures how much boost you are running so that your ECU can compensate with fuel. A must have when your vehicle begins having moderate bolt-ons for both piggy-back or standalone engine management systems.

Here are the details:

  • Good for temperatures as low as -40°F to 260°F
  • Going from 10% of the pressure scale to 90% takes .001 seconds
  • Direct replacement for your stock MAP sensor
  • Plugs into the stock harness
  • Specifications

    Brand: Omni Power
    Model Specific: Yes
    OEM Replacement: Yes, with Tuning
    Maximum Reading: 4 Bar
    Mfgr. Warranty: Limited Lifetime Warranty
    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.



    11 Reviews
    4.4 out of 5 Stars
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    Customer Photos and Videos
    Omni Power 4 Bar MAP Sensor ( Part Number: MAP-STI-4BAR)
    Omni Power 4 Bar MAP Sensor ( Part Number: MAP-STI-4BAR)
    Not has labeled 7 months ago
    2out of 5stars

    The sensor I received has "4BR" cast into the housing, but when put on a calibrator it only goes up to 3 bar (actually 295 kPa @ 4.76VDC ).
    Was this review helpful?
    2006 STI running speed density 2 years ago
    5out of 5stars

    I'm running this on my 06 STI, running the ETS rotated turbo kit with speed density. I've heard rumors of these failing and needing replacement. 4 months in starting from a NY winter to Spring, I haven't had an issues with it. I will keep my eye on it but so far it works just as it should. I will certainly update this post if an issue with it occurs. -04-07-2017
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    3 of 3 people found the following review helpful
    02-03 WRX 16bit WILL WORK 3 years ago
    5out of 5stars

    I just installed this on my bugeye and the greatest thing about this sensor is that its an OEM replacement in terms of fit and install. You will need a tune. And I understand the whole "high idle" issues with the 16bit ECU. However if you run the Carberry rom there is a fix for it and my bugeye is idling just fine at 850rpm. You'll need to change the MAP sensor Multiplier and Offset and Minimum Voltage (CEL). Multiplier= 11.97 Offset= +0.506 Minimum Voltage= +0.20
    Was this review helpful?
    1 of 1 people found the following review helpful
    Omni MAP sensor on our 2015 STI 4 years ago
    5out of 5stars

    We used this Omni MAP sensor on our 2015 STI and it allowed us to run much higher boost than the stock sensor can read and was easy to tune!
    Was this review helpful?
    0 of 2 people found the following review helpful
    Not work to 16bit ECU from WRX 2002-2005 6 years ago
    1out of 5stars

    I don't know why the Omni declare that this sensor fits WRX 2002-2007, if this part is not possible tunning correctly on WRX 2002-2005 that have 16bit ECU. The car stays at 1500rpm with this sensor.
    Was this review helpful?


    • Q: 2015 Subaru STI 20g  Jason Sharp2 years ago

      Would if be a good idea to buy this for a 20g turbo set up?
    • Q: 2011 sti  2011sti3 years ago

      I will be doing header cattless down pipe cobb af intake gatewate what will the do for me or should i get 3 bar What dose this do for me??
      • 0 of 0 people found the following answer helpful

        A:  These sensors are used for cars running significant amounts of boost on large turbo setups or on cars that have switched to a standalone engine management system like the AEM. An upgraded MAP sensor would not be necessary for your setup.

        Josh P. @ RallySport Direct 3 years ago  
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    • Q: Suitability for EJ207  flitzow4 years ago

      Hello. Does this Omni 4Bar MAP sensor fit for EJ207 GDB-F?
      • 0 of 0 people found the following answer helpful

        A:  This will work with the 2.5 liter USDM Wrx and Sti and is not confirmed to work with anything else at the moment.

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    • Q: Does it work on 05 wrx?  Hunk4 years ago

      Does it work on 05 wrx?

    This Part Fits