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Tim this is an awesome thread on your 1le's journey to Germany. I just sold my 2020 SS for a 2021 1LE, I ran the cold air inductions intake at a track day and got flashing check engine, p0300, service stabilitrac misfires etc... id disconnect the battery and everyone would be fine. I put the stock intake back on and ran a track day at palm beach Friday with no issues... what were the symptoms your car had when you had issues with the gm performance intake??
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