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GM 2 bar map sensor
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the GM 2 bar map sensor is able to read manifold pressures above the stock sensor, which is a little less than one BAR or about 10 psi. the GM 2 bar can read up to about 28 psi. If used, however, you need some type of engine management that you can calibrate the map sensor, becasue the signal is slightly different than the stock sensor. Then again, if your running 20+ psi of boost, you will no doubt already be running some type of engine management. There is alot of info on this topic at Hondata
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