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Removing the Resonator 

 

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 Post subject: Removing the Resonator
Posted: Wed Jun 11, 2008 12:28 pm 
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Hi Team,

Quick question......about 4 months ago had a redback 2 1/2 inch cat back system put on my AUIII XR6 (Redback). Not all that happy with the note - would things improved if the rear resonator came off?

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Posted: Wed Jun 11, 2008 12:53 pm 
Getting Side Ways
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I assume you are after a deeper note? Removing anything will make it louder.
Ring the people who fitted it and ask them :)

 

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Posted: Wed Jun 11, 2008 3:52 pm 
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i love my redbacks note

i dont think the resonator will do anything cause when my stock one fell off (rust) it didnt sound any differnt

 

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Posted: Wed Jun 11, 2008 4:36 pm 
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I dare say the exhaust note will take a turn for the worse if you remove the resonator.
I orginally had my catback fitted with a straight-through rear section, although eventually the drone annoyed me and I was worried about the EPA.
Had a rear resonator fitted for $80, minimal drone, a little quieter than before and improved the overall sound 100%

By all means experiment with your current system, but if you dont like it as is, I doubt you'll be able to change the overall sound by enough to change your mind.
Might have to go a better quality catback to get the sound you're after? Maybe S/S sounds better than mild steel?

Edit: I assume you have a single middle muffler and then one resonator after the diff, rather than 2 mufflers plus resonator?

 

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Posted: Wed Jun 11, 2008 5:53 pm 
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Nothing worse than a dead droning 6cyl.

I'd leave the resi on or at the least replace it with a hotdog.

 

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Posted: Wed Jun 11, 2008 7:01 pm 
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Removing the resinator if perfect for that Commodore sound.
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Posted: Wed Jun 11, 2008 10:13 pm 
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haha lol true i wouldnt remove resinator it most likely will sound worse

 

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Posted: Wed Jun 11, 2008 10:31 pm 
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yeh a mate took the resinator off his car and it sounds cheap and nasty. also the feel in your a** after sitting in the back seat for a litle bit from the exhaust vibrations is real annoying
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Posted: Wed Jun 11, 2008 10:37 pm 
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i have a redback exhaust and i had the rear hot dog removed.(because it wasnt loud enough for me)
your car will become louder if you remove it..
mine has more of a raspier sound than before but it doesnt drone at all..
but mine is a manual..
so i guess it may drone if you have a sludge o matic..


here is a sound clip the rear car is under a car port becked up to a shed so it echo's abit

http://au.youtube.com/watch?v=sSiRxQU3tmQ
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Posted: Wed Jun 11, 2008 11:23 pm 
Getting Side Ways
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I had a redback 2 muffler system and the exhaust note wasn't much better or louder than stock. I removed the back muffler and then it became droney.

Especially at about 80km/hr. And when you floored it from a stand still it let out a really loud drone dull exhaust note. Basically I can pick out any 6cyl falcon running a redback exhaust. Just listen for the loud bellowing drone noise.

I then fitted a custom Lukey Race series muffler with custom pipes. Way better sound and doesn't drone.
And i also got a performance increase especially down low.

RDP(redcliffe performance) dynoed redback exhausts on e-series and found no gain compared to stock exhausts. So you may aswell throw your money down the street.

I learnt the expensive way. Mass produced exhaust systems that hang of racks are s**t compared to a full custom system.

cheers and have a nice day.

 

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Posted: Thu Jun 12, 2008 12:04 am 
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I went with a 2.5" cat-back Redback system and I think it sounds great. Huge improvement on the stock sound with little to no drone at all. I got a mate to take it for a drive so I could hear it from outside and it had a nice sound. Not droning, not obnoxiously loud.... just right.
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Posted: Thu Jun 12, 2008 12:22 am 
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i just ripped off the res on my ute. i have a 2 1/2 jmm setup.

Sounds so much tougher. With the res it sounded a bit too much like a jap engine now it barks. But i also didn't replace it with pipe just dumped at diff.

111.7db :twisted:

Ben
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Posted: Thu Jun 19, 2008 12:51 pm 
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Location: Brisbane
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Hi guys,

Thanks for all your thoughts - very much appreciated.

Yes, it's just the single muffler / resonator setup, and i was expecting a bit more of a beefier note, but like a couple of you have said it's only slightly (to me anyway) louder than stock. And honestly, i do like my cars loud. So perhaps the remove resonator - add hotdog would be the way to go?

Cheers
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Posted: Sat Jun 21, 2008 11:54 pm 
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well this is what mine sounds like with a single muffler and Genie extractors, i dont think it sounds ricy at all and there is no DRONE. Then again it was a custom job and the muffler that is left in place is just infront of the diff.
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Posted: Sat Jun 21, 2008 11:59 pm 
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http://s290.photobucket.com/albums/ll27 ... V00036.flv

sorry guys forgot to add link. my bad
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