Nissan 370Z Forum - Mind boggling exhaust noise

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- - Mind boggling exhaust noise (http://www.the370z.com/intake-exhaust/131198-mind-boggling-exhaust-noise.html)

Mikriman

06-15-2019 11:39 AM

Mind boggling exhaust noise

So I had an ARK GRiiP Exhaust and Z1 HFC’s installed by AWD Tuning and had the car tuned. Seemed to run fine for about 2 weeks and if I attached the link correctly you can hear that annoying noise of what sounds like a Cicada stuck in the pipe. What’s odd is: on the lift, the noise happens after letting off the throttle, when driving, it happens when accelerating at high rpms.
If anyone has any ideas - the guys at AWD Tuning are a bit stumped as well.

BettyZ

06-15-2019 12:00 PM

Quote:

Originally Posted by Mikriman (Post 3861101)

So I had an ARK GRiiP Exhaust and Z1 HFC’s installed by AWD Tuning and had the car tuned. Seemed to run fine for about 2 weeks and if I attached the link correctly you can hear that annoying noise of what sounds like a Cicada stuck in the pipe. What’s odd is: on the lift, the noise happens after letting off the throttle, when driving, it happens when accelerating at high rpms.

If anyone has any ideas - the guys at AWD Tuning are a bit stumped as well.

Scope the inside of the piping?

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Nooree01

06-15-2019 12:05 PM

It sounds like it has something to do with the hiss our car makes when letting off the gas maybe your cat material broke

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fryzia23

06-15-2019 03:21 PM

Its normal. My ark exhaust did the same exact noise off throttle. VQ hiss. Most pronounced at the X pipe section. Cant do anything about it unless you go with factory cats.

Mikriman

06-15-2019 05:00 PM

So it’s a HFC issue, ARK Exhaust issue, or a combination of both along with the VQ hiss?? I find that hard to accept...

BettyZ

06-15-2019 05:06 PM

Quote:

Originally Posted by Mikriman (Post 3861151)

So it’s a HFC issue, ARK Exhaust issue, or a combination of both along with the VQ hiss?? I find that hard to accept...

That sounds far, far louder and different than my VQ hiss with Berk HFCs. Honestly it sounds almost like something's loose in there.

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Nooree01

06-15-2019 05:09 PM

Quote:

Originally Posted by BettyZ (Post 3861152)

That sounds far, far louder and different than my VQ hiss with Berk HFCs. Honestly it sounds almost like something's loose in there.

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For the sake of it take a look inside the exhaust and the cats to rule out that anything is loose.

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Mikriman

06-15-2019 05:27 PM

Thanks—that’s my next step after speaking with Z1 and ARK to get their thoughts....

fryzia23

06-15-2019 05:53 PM

I know its hard to believe but it was bothering me too and I also looked into the exhaust and found nothing. Eventually sold it and went with FI exhaust with their test pipes. Still has the VQ hiss but not as bad as ARK did.

Rusty

06-15-2019 08:49 PM

:rofl2: The VQ hiss bits again. There are a bunch of threads on it. Each different exhaust will change it's pitch and tone some what. I think it's neat. :tup:

Maestro666

06-19-2019 07:23 PM

I have the Ark Grip cat back and the FI RHFC's installed and I get absolutely zero hiss (definitely no rattle).

A little disappointed I don't get some badass hissing actually

Mikriman

06-19-2019 08:21 PM

Quote:

Originally Posted by Maestro666 (Post 3862237)

I have the Ark Grip cat back and the FI RHFC's installed and I get absolutely zero hiss (definitely no rattle).

A little disappointed I don't get some badass hissing actually

Maestro666, may I add..........YOU SUCK. :icon17:

I may just go that route, thanx for your input

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