FI Non res vs resonated CBE

Originally Posted by markesc Is this how they all sound? It sounds mean, but it sounds mean with an O-ring/exhaust leak somewhere, or a flex pipe caused sound? Or is

		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Intake/Exhaust
FI Non res vs resonated CBE

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08-08-2015, 10:42 PM

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SwissCheese

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Quote:

Originally Posted by markesc

Is this how they all sound?

It sounds mean, but it sounds mean with an O-ring/exhaust leak somewhere, or a flex pipe caused sound? Or is this because of where the MIC was installed?

Please advise...

The hiss comes from removing the stock catalytic converters. The sound is always there, but it's normally muffled by the stock cats. When removed (with long tube headers, test pipes, or sometimes with high-flow cats), the hiss becomes much louder.

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