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Old 01-02-2019, 07:26 PM   #5 (permalink)
Visser51
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Join Date: Mar 2018
Location: New Zealand
Posts: 4
Drives: 2013 Nissan 370z
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Quote:
Originally Posted by Spartan 1771 View Post
Here is the only thing I could find on this, which isn't really helpful: SCCA Exhaust db Limit

I have a non resonated, carbon fiber Fast Intentions CBE with Berk HFCs. I would be happy to do a test for you, but I don't have a meter.

Rusty is running FI headers and an FI CBE. I wonder if he has a meter?

Also, there is going to be a big sound difference with the FI CBE depending on which system you decide to go for: 12" resonators, 18" resonators or non resonated.
Hi Spartan 1771, thanks for responding.

Honestly I'm not all too sure about the resonated part of the exhaust. From my knowledge it seems the longer the exhaust is resonated e.g 18" opposed to 12", the quieter the exhaust becomes in the cabin e.g less drone.

Is this the case? Will it also make it quieter outside the car? If so I will probably go with the most possible resonation.

Thanks for bearing with me, I am new to 370z modifications and this is my first post on this site.

Regards,

Visser51.

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