GMPP Exhaust
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GMPP Exhaust
so my local dealer is returning my car completely to stock, so they want to put a stock exhaust back on cuz the current one is a "high flow" system and they say i will be getting inaccurate O2 readings. so i was just wondering if the GMPP one is considered "high flow" and give wrong readings?
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so my local dealer is returning my car completely to stock, so they want to put a stock exhaust back on cuz the current one is a "high flow" system and they say i will be getting inaccurate O2 readings. so i was just wondering if the GMPP one is considered "high flow" and give wrong readings?
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