G35Driver - Infiniti G35 & G37 Forum Discussion

Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

Will ceramic HFC in place of metallic cats quiet my exhaust?

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Old Jul 22, 2009 | 11:56 AM
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Will ceramic HFC in place of metallic cats quiet my exhaust?
My G35 5AT coupe with a FI catback drones badly around 2000 rpm with Berk HFC installed. Has anyone tried ceramic HFC instead to eliminate drone?
 
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Old Jul 22, 2009 | 07:27 PM
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NO. cermaic is a coating, it is mostly to help with heat. It's not going to make much difference, if any.
 
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Old Jul 22, 2009 | 09:28 PM
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Ceramic is NOT a coating. I am referring to the catalytic matrix. Metallic cores are much higher flowing (you can actually see thru them). Ceramic cores are much denser. I just want to know if the ceramic cores will slow exhaust flow enough to eliminate the exhaust drone.
 
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Old Jul 22, 2009 | 09:30 PM
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What's wrong with the oem cats as delivered? When you reduce flow you lose any gain created by lower back pressure.
 
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Old Jul 22, 2009 | 09:45 PM
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I want some power gains w/o the drone.
 
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Old Jul 23, 2009 | 12:25 PM
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I'm working on a set of new test pipes & cats specifically for your situation.

Keep an eye out. I'll make a post on it when ready.
 
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Old Jul 23, 2009 | 12:55 PM
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Gotta love Motordyne!
 
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Old Jul 25, 2009 | 08:32 PM
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+1 on the drone at 2k with the Berk HFC's...sigh...
 
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