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markrowe1
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 Posted: Tue Dec 07, 2004 5:27 pm Post subject: straight through vs. hot dog |
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| just wondering what the sound difference is betweena sports exhaust with a straight through pipe vs. a hot dog in place of the rear resonator |
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fordgt290
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| Posted: Tue Dec 07, 2004 5:55 pm Post subject: |
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| well straight through is alot louder as it doesn not flow through any restrictions or baffels, hot dog will make things a little less noisy but still loud |
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Interceptor
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| Posted: Tue Dec 07, 2004 6:50 pm Post subject: |
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he means replacing the resonator with a piece of pipe VS a hotdog
the resonator will kill off a lot of droning, but will still keep a good note |
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twr7cx
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| Posted: Tue Dec 07, 2004 8:13 pm Post subject: |
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A sport exhaust with a straight through muffler and resinator would sound awsome with no dronning, but not be very loud (much louder than stock though).
A sport exhaust with a straight through muffler and hotdog would sound awsome, have a little dronning, and be pretty loud. This is the system I've got, and once I replace my hollowed out cat converter with a hi flow, it'll be the perfect volume, although in a few years when I don't like hearing the exhaust all the time I'd probably want it quiter. In the waggin I get a fair few complaints about it being very noisy in the back.
A sport exhaust with a straight through muffler and nothing elsewould sound awsome, but drone a lot and be bloody loud! |
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markrowe1
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| Posted: Tue Dec 07, 2004 8:15 pm Post subject: |
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ok cool
also why the hell does the standard exhaust have the cat and then 3 mufflers |
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bowsaw
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| Posted: Tue Dec 07, 2004 8:19 pm Post subject: |
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| I dont like the sound of hot dogs, to rice for me, straight thru would be better, but to loud, asking for attention, from the coppers. Thats my opinion anyway, everyone to their own. |
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twr7cx
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| Posted: Tue Dec 07, 2004 8:25 pm Post subject: |
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| bowsaw wrote: | | I dont like the sound of hot dogs, to rice for me, straight thru would be better, but to loud, asking for attention, from the coppers. Thats my opinion anyway, everyone to their own. |
But a straight through muffler on it's own is louder than a set up with a straight through and hot dog! The louder the set up the more attention it draws...
I've found that cops are cool with loud exhausts on a clean car - probably because they know it's a proper sports exhaust, not a removal of the exhaust system as most VL/VK's do! |
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drazull
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| Posted: Tue Dec 07, 2004 11:47 pm Post subject: |
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| When (being the operative word) I get myself a new exhaust I will try to get a custome one which is nice and quiet. |
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XRFan101
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| Posted: Wed Dec 08, 2004 3:54 pm Post subject: |
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| LOL i think my XR6 is loud enough as it is. All ive done to it is removed the resonator, sounds really nice thou. Its got kind of a deep growl to it. But yeah as its stock once you go over 3500rpm its quiet as....... Oh well. |
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Marmo aka GRNGOB
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| Posted: Wed Dec 08, 2004 4:28 pm Post subject: |
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i got a 2.5 ince redback cat back exhuas on my eb with no res and it seems o be pretty quite like i went in one of my friends vl calais nonturbo with a 2.5ince cat back on hers but it has the res in and it seems louder but she said she had a turbo muffler, i got a strighthourgh one???
whats up with that?
im thinking it could be my cat as m old engine fukt its self and blew all kinds of crap out and i havent put in the extracktors and hiflowcat in yet???
do u think extracktors wll make much of a differnce |
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twr7cx
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| Posted: Wed Dec 08, 2004 4:36 pm Post subject: |
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Extractors don't seem to increase or decrease the noise. They just change the points on where it is louder or softer in the rev range.
Marmo, I'd be saying you should have a look at your cat converter then. It's a bad idea to leave a stuffed cat on a new ehaust as bits will blow into the new mufflers and damage them.
The Lukey Turbo mufflers are quiter than the Lukey ultra flow straight through mufflers. The Turbo mufflers are also slightly more restrictive... |
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Marmo aka GRNGOB
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| Posted: Wed Dec 08, 2004 7:30 pm Post subject: |
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im not sure if heres is louder or not because i only heard it from inside the car and im pretty surevls get more road noice then ebs
how mucham i looking at for a 2.5 ince hiflow cat? |
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PC EB
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| Posted: Wed Dec 08, 2004 7:38 pm Post subject: |
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A hot dog isn't a muffler, it's a resonator, which does nothing for sound levels, just removes higher frequencies.
The stock system isn't 3 mufflers, it's a resonator, then 2 mufflers. I took the muffler out of mine and it did f**k all. |
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markrowe1
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| Posted: Wed Dec 08, 2004 7:57 pm Post subject: |
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| well all these different opinions are somewhat confusing |
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twr7cx
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| Posted: Wed Dec 08, 2004 9:08 pm Post subject: |
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| PC EB wrote: | | The stock system isn't 3 mufflers, it's a resonator, then 2 mufflers. I took the muffler out of mine and it did f**k all. |
Actually on my Mom's EBII Fairmont and my EF GLi the stock system is 1 muffler with a resinator infront and behind it.
If you can hear more road noise in the car, then your hear more exhaust too...
You can often pick up a 2", 2 1/4" or 3" hi flow cat on eBay.com.au for under $200.00. Although I never see many 2 1/2"'s - I've been looking. I got quoted $220.00 installed for a 2 1/2" hi flow the other day at an exhaust shop - so that's a better option. |
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NOCLAF
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| Posted: Wed Dec 08, 2004 10:50 pm Post subject: |
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| Yeh thats how my ED is cat-resinator-muffler-resinator... i took off my back resinator.. mad no difference at all then replaced my muffler with a lukey turbo muffler.. a little louder but not much so i think i am goin to hollow out my cat and take off my front resinator and put a hotdog behind my muffler... see how that sounds.. |
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xcabbi
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| Posted: Thu Dec 09, 2004 11:01 am Post subject: |
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| Interceptor wrote: | he means replacing the resonator with a piece of pipe VS a hotdog
the resonator will kill off a lot of droning, but will still keep a good note |
There are different types of resonators/hot dogs. The old school ones with the squared off edges on them make the car buzz and they get rid of the low/mid frequency drone. I had a 1.8 n13 pulsar with a 2.5"cat back system with a resonator and old school hot dog (no mufflers) and it sounded sweet as and was still legal. even when i dropped off the old school hot dog it still sounded good but a little harsh. You could tell that it was missing but it was still legal in terms of sound level.
These new school hot dogs/resonators/cannons/whatever the ricers call them are just crap. There has been no thought go into the design of these things. Accustically all they do is make the car drone and just sit there looking pretty while being hung off the back of the car at insane angles. |
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XRFan101
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| Posted: Thu Dec 09, 2004 11:05 am Post subject: |
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| xcabbi wrote: | | Interceptor wrote: | he means replacing the resonator with a piece of pipe VS a hotdog
the resonator will kill off a lot of droning, but will still keep a good note |
There are different types of resonators/hot dogs. The old school ones with the squared off edges on them make the car buzz and they get rid of the low/mid frequency drone. I had a 1.8 n13 pulsar with a 2.5"cat back system with a resonator and old school hot dog (no mufflers) and it sounded sweet as and was still legal. even when i dropped off the old school hot dog it still sounded good but a little harsh. You could tell that it was missing but it was still legal in terms of sound level.
These new school hot dogs/resonators/cannons/whatever the ricers call them are just crap. There has been no thought go into the design of these things. Accustically all they do is make the car drone and just sit there looking pretty while being hung off the back of the car at insane angles. |
Yeah i agree. I hate the fricken Pineapple shooter exhausts  |
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rossi
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| Posted: Thu Dec 09, 2004 11:39 am Post subject: |
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From what I've been told from a few exhaust places, from next year, whatever came standard on the car cannot be deviated from.
Eg, if you have cat/muffler/resonator as standard, then you'll need the same amount when you get your sports exhaust. If the modifications deviate from the manufacturers standard, you will get a fine, and the exhaust place will also get a much higher fine.
There's no probs with having HI-flo cat/straight through muffler/resonator or hotdog, as long as you have the same amount of mufflers on the car that when it came as standard.
And yes the resonator is a muffler, just slightly different composition.
Even if your emissions are the same, and you're within the 90decibel level, you will still need the same amount of mufflers. |
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Shugg
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| Posted: Thu Dec 09, 2004 11:53 am Post subject: |
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Rossi,
Is there any hard evidence to support this anywhere? I doubt the exhaust shops would be giving you the wrong info, however, it would be interesting to have a look into it properly.
Shugg |
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