Exhaust drone

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Old 11-29-2011, 05:20 PM
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Exhaust drone

Good evening Acurazine,

I installed Tsudo Cat Back exhaust today on my 04 6MT and it sounds great when I step on it, the performance gains were very noticeable and the car pulls much harder in 3rd gear, but the drone is BAD ! very loud and annoying drone from 2-3K RPM.
I also have RV6 V3 and im sure that enhances it a bit, are there any ways to shut this damn drone ?
Thanks in advance guys ....
Old 11-29-2011, 07:12 PM
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Hmmm maybe adding a resonator??
Old 11-29-2011, 07:17 PM
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It already comes with a resonator.
Old 11-29-2011, 09:30 PM
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get the PCD's
Old 11-29-2011, 09:35 PM
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Swoosh, Wont the PCD's make it ever worst or raspy ?
Old 11-29-2011, 09:39 PM
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^^^ LOL...red text mah man....means sarcasm....

I would replace the resonator with a longer one....or look into "venturi" tubes....I have heard they do shut the drone up completely....
Old 11-29-2011, 09:42 PM
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Would a bigger resonator reduce the gains from the exhaust ?
Also what resonator do you recommend ?
Old 11-29-2011, 09:58 PM
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^^^ not really and not much....

by bigger i didnt mean wider, i meant longer....and i would recommend dynomax....
Old 11-29-2011, 10:06 PM
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I wish more people would share their input, but I trust your knowledge Swoosh !
Old 11-29-2011, 10:10 PM
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^^^ i understand....you want a second opinion....

even ABP suggested to add a resonator....drone is created by frequencies in the exhaust....thats why they come at certain rpm's....

i would leave it as is for now....after you do more mods your exhaust will be seeing a lot more pulses and quickly moving pulses (exhaust pulses)....maybe that might reduce the drone....

you could also try to heat wrap the exhaust components....
Old 11-29-2011, 10:22 PM
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The various resonators are discussed in-depth in the link below.

The Drone is unreal! Help! (click here)

Here is some related reading material.

XLR8 J-pipe install.......Not liking the sound! (click here)
Taming the beast! PCD Rasp (videos posted) (click here)
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Old 11-29-2011, 10:23 PM
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You won't be able to really get rid of the drone without adding something. I'd try another resonator like stated above, it might hurt the gains a tiny, tiny bit but thats the price you pay for drone free exhaust. Maybe try another muffler if you don't like the resonator idea.
Old 11-29-2011, 11:01 PM
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Get big foam pieces and stuff them in your trunk like I did ^___^
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