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Hissing from hfc, is it a rumor?

Those who are experiencing a hiss with HFCs are experiencing it as a result of their exhaust and HFC pipes not mating. Some members are running a HFC with a

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		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Intake/Exhaust
Hissing from hfc, is it a rumor?

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04-19-2015, 09:07 PM	#13 (permalink)
FuTuRe is Z Enthusiast Member Join Date: Nov 2013 Location: CT Posts: 263 Drives: 2014 370z Rep Power: 12	Those who are experiencing a hiss with HFCs are experiencing it as a result of their exhaust and HFC pipes not mating. Some members are running a HFC with a 2.25 in outlet and then are running a 2.5" exhaust. Or some are running a 2.5" HFC and then a 2.25" inch exhaust. The variations in piping diameter at the flanges are causing air to seep out and creating a hissing sound. eastwest2300 and Popwarfirm2 like this.

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