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View Full Version : What Makes an Exhaust sound like its farting.



amant02
01-08-2013, 02:26 PM
Hi Guys,

Just completed my exhaust.

2 and 1/2 inch mendrel bent pipe, xforce twin loop muffler with PLM Headers.

No Resonator - Straight Flow. 100CPI Cat.


As soon as i go past 4k a small buzzing sound comes on. As soon as i hit 6k that sound is almost as loud as my car. I have taken a video but the sound is not clear, will try to take another one.

Is a Resonator important?

trism
01-08-2013, 02:38 PM
That buzzing is called resonance. Thats why we use resonators, so it doesnt happen.

If you want a loud/nice sounding exahaust, run a resonator, but dont run a muffler, or run a straight through muffler.

Snoop_gee
01-08-2013, 03:18 PM
sounds like the police will be visiting u soon

https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-ash4/998413_545606528828460_637930534_n.jpg

Rage King
01-08-2013, 03:41 PM
dont forget to put these decals/stickers on your rear bumper for that JDM awareness

http://i.ebayimg.com/t/FUNNY-WARNING-EXHAUST-MUFFLER-SYSTEM-PIPE-PICKUP-TRUCK-CAR-BIKE-STICKER-DECAL125-/00/s/NDgwWDY0MA==/$(KGrHqJHJE0FCsjbm-)!BQuEN6DLOw~~60_35.JPG

ctx
01-08-2013, 03:45 PM
i think this is fake sound u r talk about, if u look at driver he sometime making fart noise using mouth, make car sound like powerful kind hurt my ear

Rage King
01-08-2013, 03:49 PM
back to OP,

i guess if that noise really annoys you then try the below method ....this will definately keep the noise down and u get a free BBQ too

http://25.media.tumblr.com/tumblr_llqblgeHiA1qc6qawo1_1280.jpg?.jpg

Baby Face
01-08-2013, 05:15 PM
i had a car with 2 resonators on it, no muffler. was loud as hell. my ears blead.

i think you should run oval muffler to help rid of most noise.

amant02
01-08-2013, 06:23 PM
Buts its a twin loop. Ill get a resonator fited asap. Im happy with the tone and loudness to it, just the buzz sounds makes it sound so cheap. I know i got replica brands and what not to cut cost down. But still forking out 1.5k for it. Didnt expect it to sound so shit. Ill take a video on my way home when i hit vtec entering m4.

Baby Face
01-08-2013, 07:37 PM
you using a cannon?

amant02
01-08-2013, 07:40 PM
Nop

PLM Toda Copies > 100 cpsi ballistic cat > Twin Loop Xforce

Put together with a 2 and 1/2 inch bendrel bent pipe.

No Resonator as I was told that resonator effects the straight flow.

u mad?
01-08-2013, 07:43 PM
lol, man you def need resonator, they stop the shitty rasp

i can garentee you wont feel a power difference putting a resonator in

flop101
01-08-2013, 07:53 PM
is backfiring when downshifting heaps problematic for the longevity of an engine?

u mad?
01-08-2013, 07:58 PM
no

has your car been tuned?

flop101
01-08-2013, 08:08 PM
its got a plug and play ecu, hasnt been tuned though, as its got a preloaded map. similar to the mugen ECU plug and play.

curtis265
01-08-2013, 08:16 PM
is backfiring when downshifting heaps problematic for the longevity of an engine?
no

cos the pooping isin your manifold

even still, no danger to manifold

ctx
01-08-2013, 08:29 PM
no

cos the pooping isin your manifold

even still, no danger to manifold

http://i532.photobucket.com/albums/ee325/ptschafer2/Manifold.gif

Baby Face
01-08-2013, 09:16 PM
is backfiring when downshifting heaps problematic for the longevity of an engine?

dont hijack the thread, make your own. search

mocchi
01-08-2013, 09:38 PM
no

cos the pooping isin your manifold

even still, no danger to manifold


http://i532.photobucket.com/albums/ee325/ptschafer2/Manifold.gif

fuking lol u cheeky abos

x2 add resonator

mnc
01-08-2013, 10:29 PM
The xforce twinloop gets very loud and raspy over time. Sounds horrible tbh.

The internal packing of either the muffler or resonators has probably also degraded over time
and is not doing the job that it is meant to do.

Also bits and pieces of the internals could be broken off inside just rattling around.

trism
02-08-2013, 10:46 AM
The xforce twinloop gets very loud and raspy over time. Sounds horrible tbh.

The internal packing of either the muffler or resonators has probably also degraded over time
and is not doing the job that it is meant to do.

Also bits and pieces of the internals could be broken off inside just rattling around.

WTF are you talking about? Dude said its a brand new exhaust, with no resonator.

So tell me why youre talking about degrading over time like its a 10 year old exhaust?

dougie_504
07-08-2013, 12:41 PM
Get a reso and a Mugen twinloop!

Drifter995
07-08-2013, 05:43 PM
I was also going to say muffler might be shagged... But if the muffler is new, resonator would be the one to look at

mattsrea
07-08-2013, 08:28 PM
like others said dude anything (even small ended muffler) with a straight through pipe is going to be loud, adding a twin loop will be even more louder!
So yeah get a resonator :)

mnc
08-08-2013, 10:23 PM
WTF are you talking about? Dude said its a brand new exhaust, with no resonator.

So tell me why youre talking about degrading over time like its a 10 year old exhaust?

Wow. Take it easy man... What's with the attitude? He clearly did not say "new" anywhere.. Only he just put together one, that could also mean a used system.

xenonkuraz
08-08-2013, 11:10 PM
Either get a resonator welded in or a glass pack hotdog will still do the job fine if you're worried about flow restriction. Make sure it's perforated core not louvred.

amant02
10-08-2013, 02:13 PM
Resonator booked in next week! lets see how this goes.

All items are brand new.

I like the colour of my headers absolute sexy.

dougie_504
10-08-2013, 06:14 PM
Gold with blue tinge?

amant02
10-08-2013, 07:44 PM
Yeee, Very sexy. Very Happy with the performace and bling, Just not happy with the sound atm. Ill take a photo

http://imageshack.us/a/img96/5331/la8z.th.jpg (http://imageshack.us/photo/my-images/96/la8z.jpg/)


http://imageshack.us/a/img849/5064/fzfg.th.jpg (http://imageshack.us/photo/my-images/849/fzfg.jpg/)

dougie_504
10-08-2013, 08:25 PM
Yeah that's pretty much normal for stainless. Is sexy. Keep it clean mate :)

Daveho1
11-08-2013, 07:32 AM
good luck op