First off, if you had heard Scott's car, you would not be arguing whether or not that leak was costing him boost. Second, he didn't say that the car is directly measuring exhaust gas pressure, he said that the car uses MAF and MAP to determine engine load, with which backpressure varies more or less linearly. Lastly, his MAP sensor is perfectly okay, and he has no boost leaks, because if either was the case the car would be running extremely rich and acting all kinds of weird. Please, please stop trying to diagnose Subaru engine maladies over the internet.
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FWD is the new AWD
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