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Old 01-17-2014, 01:48 PM   #5
cncnjn
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Drives: Raven FRS Veilside Nissan 350z
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Quote:
Originally Posted by DJCarbine View Post
You will still get the exhaust note of an uneven length header, but with some drone. With a resonated front pipe I had massive drone in the 3-4K rpm area, cruising on the highway was killing me.

I highly suggest a helmholtz resonator in your system if you go with the N1 exhaust, it kills the drone completely

I just found an old video when I was adjusting my bypass valve (ignore the whine) and you can hear the exhaust note with the borla UEL/N1 exhaust but with a helmholtz resonator... without the helmholtz the microphone would be overwhelmed with drone and just sound like someone was yelling into it

Gives a decent idea of what it sounds like in the lower more drone-prone RPM range

With a catted frontpipe I would honestly just expect the same noise but with added drone/headache

Coldstarts on a non-catted UEL will be very raspy with the N1

Does a resonator just eliminate cabin drone or does it lower the sound of the exhaust too?
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