COBB 4 Bar Map Sensor (05-07 WRX & 04+ STI)
The COBB Subaru 4-Bar MAP Sensor is a direct replacement of the factory piece and allows the ECU to accurately measure increased levels of boost pressure.
Most Subarus are equipped with either a 2.5 or 3 bar MAP sensor from the factory which allows accurate reading up to either 21.5psi or 28.8psi (respectively). For vehicles targeting boost values higher than that, an upgraded sensor is required.
The COBB 4-Bar MAP Sensor will allow accurate measuring at over 40 psi of boost pressure. This is vital for cars running boost levels that are higher than the factory sensor can accurately measure. Unlike some sensors, the COBB 4-Bar MAP sensor allows the ECU to retain it's error reporting ability and will illuminate a DTC if an error is detected.
NOTE: Custom Tuning REQUIRED to safely utilize the COBB Subaru 4-Bar MAP Sensor. Calibration data can be found the Installation Instruction Document.
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.
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