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  1. General Maintenance, Troubleshooting & Accidents.
    Hey everyone, I've been seeing Feedback Knock upwards of -11 ever since I got an AP this past December. Bought the car in November. 2010 WRX w/ 100K+. Stock intake and tune. I was able to get a good log tonight (attached) going from stop light to stop light on my drive home, where I saw...
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