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Custom Mode and Quiet Start Issues

steveo1960

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2024 Mustang GT Premium 401a, Auto, AE, Atlas Blue
Mine starts loud even from the start button. Then about 15 seconds later it quiets down. Is this normal?
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samson

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'24 GT Convertible 401A, AVE, Brembos
Mine starts loud even from the start button. Then about 15 seconds later it quiets down. Is this normal?
Mine does the same. Starts in quiet mode, but the RPMs are held higher for the first 15 or 20 seconds which makes is seem louder. It's an EPA thing apparently. Helps it get up to optimal conditions quicker.
 
 








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