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Exhaust Tone During Cold Start

This is the cat-converters warming up - once they flash-off, it alters the exhaust note. HFC are worse because they take longer to flash-off (is the difference between 400, 200

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		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Intake/Exhaust
Exhaust Tone During Cold Start

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04-30-2015, 12:02 AM	#2 (permalink)
BGTV8 A True Z Fanatic Join Date: Dec 2009 Location: 03350 Australia Posts: 1,516 Drives: 09 Nissan 370Z M6 Rep Power: 39975	This is the cat-converters warming up - once they flash-off, it alters the exhaust note. HFC are worse because they take longer to flash-off (is the difference between 400, 200 and 100 cell cats)

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