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vibrant 3“ ultra quiet addition to q300

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Old 04-25-2013, 09:05 PM
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Default vibrant 3“ ultra quiet addition to q300

A 2.75 resonator can't be found from what I can see, and a 3" vibrant will slip over the 70mm q300 but I don't want there to be a "hump" where the resonator gets added, anyone care to chime in that has added a resonator to a 2.75" aka 70mm resonator?
Old 04-22-2018, 01:07 PM
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Originally Posted by speedjunky01
A 2.75 resonator can't be found from what I can see, and a 3" vibrant will slip over the 70mm q300 but I don't want there to be a "hump" where the resonator gets added, anyone care to chime in that has added a resonator to a 2.75" aka 70mm resonator?
did you ever weld it on??
Old 04-22-2018, 09:39 PM
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5 year old thread.
Old 04-23-2018, 05:20 AM
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I added a 3" Vibrant Ultra Quiet to me Q300 dual. Got rid of the rasp and drone.
Old 04-24-2018, 08:12 PM
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WHOA! How... what the... the necromancer.

anyways America does not exactly carry 2.75inch piping

2.25 2.5 or 3.

Pipe shops for expanders/reducers for fitting your example of 3 to 2.75 but as of how it affects flow no clue, should be negligible.
Old 04-25-2018, 06:20 PM
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Did you replace the invidia resonator with the ultra quiet one or did you add it in front of it? I have the berk hfc with the invidia dual and I love the sound until 5k rpm where it gets way to raspy, I just bought the ultra quiet resonator and i am hoping that will do the trick.
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