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IS350 Resonator removal.

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Old Jul 22, 2010 | 03:04 PM
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Default IS350 Resonator removal.

This is something most of us have either considered or done, but upon doing research I'm only able to find it among most 250 owners. Both with information and videos. I know they're both 6 cylinders, but they're obviously very different power wise.

Has anyone with a 350 removed the resonators on a stock exhaust? Is there any difference with removing it on a 250, sound wise? Any information at all would be great.

Thanks.
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Old Jul 22, 2010 | 03:06 PM
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Should be alomost exactly the same.
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Old Jul 24, 2010 | 12:51 PM
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Haha, I'm guessing the rest of the website agrees with you.

Thanks!
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Old Jul 31, 2010 | 05:56 AM
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I removed my resonator on my 350 a month ago, leaving the stock mufflers, and to be honest with you I HATED IT!!!!

I drove it on the hwy and on local streets, both stomping on it and cruising, for a total of 100 miles or so, before I went back to the muffler shop and had them put in a magnaflow resonator. I like it much better now (slightly sounds like the g35 in tone with g35 exhaust volume (loudness) till 3K rpm then the joe z intake pipe takes over and the exhaust goes mute)

Why I didnt like it....
I am told that on the outside it sounded great, but on the inside it droned at 55mph (not loud but annoying to me) and there was a slight vibration felt in the steering wheel at around 3K rpm. As the RPM gauge got to around 5K there was a raspy/buzz from the exhaust (think civic with fart can).

I my younger days I would have probably liked it, but since I take clients around, I opt for a more quiet car (hence why I didnt get the EVO X I was looking at before this car)..... Also I hate making more noise without making more power to go with it...

Again this is just me....
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Old Aug 2, 2010 | 12:01 AM
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Originally Posted by Srd555
I removed my resonator on my 350 a month ago, leaving the stock mufflers, and to be honest with you I HATED IT!!!!

I drove it on the hwy and on local streets, both stomping on it and cruising, for a total of 100 miles or so, before I went back to the muffler shop and had them put in a magnaflow resonator. I like it much better now (slightly sounds like the g35 in tone with g35 exhaust volume (loudness) till 3K rpm then the joe z intake pipe takes over and the exhaust goes mute)

Why I didnt like it....
I am told that on the outside it sounded great, but on the inside it droned at 55mph (not loud but annoying to me) and there was a slight vibration felt in the steering wheel at around 3K rpm. As the RPM gauge got to around 5K there was a raspy/buzz from the exhaust (think civic with fart can).

I my younger days I would have probably liked it, but since I take clients around, I opt for a more quiet car (hence why I didnt get the EVO X I was looking at before this car)..... Also I hate making more noise without making more power to go with it...

Again this is just me....

hey do you have a recording of the sound with a magnaflow resonator?
i agree with you about teh raspy fart can sound too .. i hate it ..
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Old Aug 2, 2010 | 12:06 AM
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i had mine removed and didnt notice any difference. i say get invidia mid pipes then you will notice something, but when just cruising it sounds stock and wont draw any attention.
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Old Aug 2, 2010 | 12:26 AM
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you also mentioned you get a vibration in your steering wheel at 3k rpm?
i get vibration at stop light in my steering wheel.. its faint .. but noticeable ..
could it be because i took out the resonator?
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Old Aug 2, 2010 | 06:14 AM
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Originally Posted by panda327
hey do you have a recording of the sound with a magnaflow resonator?
i agree with you about teh raspy fart can sound too .. i hate it ..
I will see what I can do. I am not in town right now so I will do it when I get back.
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Old Aug 2, 2010 | 06:20 AM
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Originally Posted by panda327
you also mentioned you get a vibration in your steering wheel at 3k rpm?
i get vibration at stop light in my steering wheel.. its faint .. but noticeable ..
could it be because i took out the resonator?
The vibration was slight and was not there before removal nor is it there now with the magnaflow.....I guess it was some kind of resonant frequency that popped up at that rpm (and light load) without the resonator.....dono for sure what caused it though.

I am super sensitive to vibrations cause....well....I HATE THEM....lmao
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Old Aug 3, 2010 | 12:10 AM
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Originally Posted by Srd555
The vibration was slight and was not there before removal nor is it there now with the magnaflow.....I guess it was some kind of resonant frequency that popped up at that rpm (and light load) without the resonator.....dono for sure what caused it though.

I am super sensitive to vibrations cause....well....I HATE THEM....lmao
yes please upload when you have the chance thank you

yes i feel some vibration through my steering wheel too i did not feel before when i had the resonator ..

if the magnaflow resonator is as good as you say it is .. i will be putting one on right away

http://cgi.ebay.ca/MAGNAFLOW-2-25-Hi...item2c47983e6f

this is what i need right ?

Last edited by panda327; Aug 3, 2010 at 01:13 PM.
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Old Aug 7, 2010 | 03:19 PM
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i took out my resonator this afternoon, i like it !
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Old Oct 4, 2010 | 08:02 PM
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Do you guys have recording of IS350 with resonator delete? Would be really appreciated it.

Thanks.
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Old Oct 5, 2010 | 03:04 PM
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http://www.youtube.com/watch?v=yQM9DT-4qIA
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Old Oct 7, 2010 | 06:03 PM
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i have deleted my resonator today, FYI, it sounds not too much different with the stock exhaust. Maybe few days later i hope the sounds will change.lol
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Old Oct 8, 2010 | 01:21 AM
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where would you buy a mangaflow resonator from? i am very interested in the sound change rather than paying 600+ for an exhaust with no gains, also the g35 sound is beautiful
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