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I had loose VBands and exhaust was leaking at my last track outing. Just got car back from shop, I replaced an O2 sensor and all is tight again. Fuel is stabilized and timing is back. Got rewarded with a new personal best. As I'm really a Stage 1.5, I can only be very happy with my cars current state of tune and performance.
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2018 M5 Singapore Grey CCBs/Utku Noa E45 ECU/xHP TCU/PG-Intake/PG-Lower Downpipes
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