Cobb Subaru 4 Bar MAP Sensor Upgrade Kit-COBB-COBBA12700
Cobb Subaru 4 Bar MAP Sensor Upgrade Kit-COBB-COBBA12700
Cobb Subaru 4 Bar MAP Sensor Upgrade Kit-COBB-COBBA12700
Cobb Subaru 4 Bar MAP Sensor Upgrade Kit-COBB-COBBA12700
Cobb Subaru 4 Bar MAP Sensor Upgrade Kit-COBB-COBBA12700
Cobb Subaru 4 Bar MAP Sensor Upgrade Kit-COBB-COBBA12700
Cobb Subaru 4 Bar MAP Sensor Upgrade Kit-COBB-COBBA12700
Cobb Subaru 4 Bar MAP Sensor Upgrade Kit-COBB-COBBA12700
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Cobb Subaru 4 Bar MAP Sensor Upgrade Kit

COBB
COBBA12700
700424678365
Sensors
20+ Units In Stock - Ships Next Business Day
COBB, Engine, Ignition, Sensors
$ 235.00
$ 235.00

SKU: BA12700   |   UPC: 700424678365

Cobb Subaru 4 Bar MAP Sensor Upgrade Kit for 2002-2021 WRX/STI Models

The Cobb 4 Bar MAP Sensor Upgrade Kit replaces the factory 2.5 bar sensor in turbocharged Subaru models, enabling accurate manifold pressure readings up to 4 bar absolute (43.5 psi boost). It fits 2002-2021 WRX, STI, and select XT variants for reliable tuning on higher boost levels. Drivers gain precise ECU data for safer, more powerful setups with Cobb Accessport.

Key Features

  • 4 Bar Pressure Range: Measures up to 58.8 psi absolute pressure for tunes exceeding 25 psi boost without signal clipping.
  • Plug-and-Play Design: Direct OEM connector fit with included pigtail harness, no wiring modifications needed.
  • Stainless Steel Diaphragm: Resists corrosion and delivers consistent readings in harsh engine bay conditions.
  • Ceramic Substrate: Ensures fast response and long-term accuracy for optimal air-fuel ratios.
  • Accessport Integration: Full compatibility with Cobb tuning software for seamless boost monitoring and maps.

Product Notes

  • Requires ECU tuning (Cobb Accessport recommended) to fully utilize 4 bar range.
  • Inspect manifold port for debris before installation to prevent sensor damage.

Installation Notes

  • Professional installation recommended.
  • Disconnect battery before swapping sensor to avoid ECU faults.
  • Bolts directly to intake manifold with OEM hardware torque to 2-3 Nm.

This Part Fits

Year Make Model Submodel
2002-2007 Subaru Impreza WRX
2004-2007 Subaru Impreza WRX STI
2008-2014 Subaru Impreza WRX STI
2008-2013 Subaru Forester 2.5 XT
2005-2009 Subaru Legacy 2.5 GT
2015-2021 Subaru WRX All
2015-2021 Subaru WRX STI All

Why Choose Cobb?

  • Decades of Subaru-specific engineering from rally-proven designers.
  • Direct integration with Accessport for real-time data logging.
  • Made in USA with rigorous testing for track and street reliability.

Frequently Asked Questions

  • Q: Will this fit my 2018 WRX STI?
    A: Yes, direct plug-in replacement for all 2015-2021 STI models with factory 3-pin MAP sensor location on intake manifold.
  • Q: What material is the sensing element?
    A: Stainless steel diaphragm over ceramic substrate for durability and precise pressure transduction up to 4 bar.
  • Q: Does installation require tuning?
    A: Sensor installs in minutes, but pair with Cobb Accessport protune or off-the-shelf map to scale for 4 bar operation and avoid check engine lights.

Shipping & Handling

  • Method: UPS Ground or USPS Priority
  • Availability: In stock - ships same or next business day
  • Packaging: Compact retail box, 5" x 4" x 2"
  • Weight: 0.2 lbs

Request For Information

Have questions about Cobb Subaru 4 Bar MAP Sensor Upgrade Kit? Fill out the form below and we'll get back to you by the next business day.
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