6G Celicas Forums

Hey guys, Hope you all dont get to heated for this quetion, but I had a dual exhuast with no name muffler and tip installed into my 97 gt celica conv. My only question is, what is it actually doing for my car, is it gonna pose as a future problem. For my intentions were only to give my car more of a louder bark with out the bite if you know what I mean.Ill apply pictures to show you what I have done and how it looks. Oh another thing my car is an automatic if that helps you figure out what problems might occur in the future p.s it sounds really good to with a deep resonating hum to it.

This post has been edited by ROMANO: Oct 14, 2005 - 1:56 PM

Wrong section buddy

http://www.6gc.net/forums/index.php?showtopic=29776

yes again one more time this morning.....this is even on the same page :/

I have no clue what this means. Are you really saying you want it to be louder without more power? I really hope that's not right. Singals are the best way to go in my book. You can control back pressure and exhaust flow easier, save wieght, and it's cheaper due to less pipe and one less muffler. Besides that, it's not a V6 or V8. I don't think I'd ever run duals on any inline engine, it just feels really wrong.

i really see no point what so ever to dual!!! just makes any car ugly honda loud

This post has been edited by yungazzdriver: Oct 14, 2005 - 6:37 PM

lol, that's halarious. Honda loud, yeah. Man, and you know what the really funny thing is, I bet a stock EX coupe with an auto could spank your Celica's ass. Lets stop the Honda bashing.

EDIT: I seen your profile and I still think the Honda will beat you now. Not after the 7age conversion. Good luck with that by the way. I thought you were just one of those Honda hating douches that didn't know anything about anything they just thought it was cool. If you know enough to do a 7age swap, you must know something. Please stop the Honda bashing though, it's just not cool.

This post has been edited by Bigmeanbulldog55: Oct 14, 2005 - 8:38 PM

ok well let just state the facts here:
no celica is EVER a dual exhaust.....my car, kidett, and the other guys none of us....
its a single pipe with a Y for 2 tips.....you can get the same gains as a single exhaust or you can get less...its all in how you design it...
pipe size, the transition from single to dual pipe it all depends on design...when i did mine i made sure that i was split pretty well, idealy you want to keep a pretty tight "V" shape to get the gases to flow smooth still, and keep your pipes equal lengths....
and the noise isn't because of two mufflers or 1 muffler they can be JUST AS LOUD....the noise comes from removing a cat, removing a resonator or whatever a properly designed and thought out system and be quiet and functional....

but REALLY it just for looks and personally i like to keep it symetrical and one on each side

what bout the mr2?

I still feel it only needs one. They even came with duals stock didn't they? Oh well. At this stage of my life, and it's been this way since I can remember so I don't know if I'll ever change, I am just totally obsessed with performance. I actually like cars to be a little ugly. I see the duals on an inline motor and I know it's just wasting space and adding weight. But on the other hand, I feel that the singal exhaust looks a lot better and more of what you would see on a racecar. This completely contridics my statement of only caring about performance, I think. I'm going to haff to do some self examining here.

I don't see how a dual exhaust could do anything but hurt the performance of an inline engine. As my earlier statement says, it's just more benifical to use one pipe.

ok, somebody correct me if Im wrong but, why is everyone saying your gonna have a louder exhaust with dual mufflers.......isnt that the point of a muffler, to quiet down the exhaust. then if you have two that should quiet it down a little more.

p.s. do what you want its your car, if you like the duals i say keep em, playr has a pretty cool setup, but as for its being, no its not doing anything for your car, just strictly for looks

[QUOTE]THANKS THATS ALL I NEEDED TO HEAR [quote=celicaGT96,Oct 15, 2005 - 10:18 AM]
ok, somebody correct me if Im wrong but, why is everyone saying your gonna have a louder exhaust with dual mufflers.......isnt that the point of a muffler, to quiet down the exhaust. then if you have two that should quiet it down a little more.

p.s. do what you want its your car, if you like the duals i say keep em, playr has a pretty cool setup, but as for its being, no its not doing anything for your car, just strictly for looks
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but REALLY it just for looks and personally i like to keep it symetrical and one on each side
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I really agree, I was really considering getting dual mufflers( and still am ).
I feel it does flow really good with invader rear personally.

Any dual exhaust will have twice the noise as a single. Quad exhaust, twice that noise. You are literally doubling the amount of exit points for the noise each time.

While a noise increase is certainly the result of removing the cat, etc, thats not the primary reason for the noise.

Also, because of the imperfect nature of the world, it is impossible to actually get the same performance out of a dual pipe that you would out of a single- no matter how equal it looks on paper.

This issue has been debated until the rocks have turned into sand. The only time dual exhaust is not detrimental is when you're using each pipe for different cylinders, like the dual exhaust for some cars from the factory, or a Mugen exhaust (I forget which car it was for), or when your engine is full of so much hot as to make Playr look mild by comparison.

Coming from a single pipe and then splitting will always result in performance losses over a big pipe. Of course, what pipe size is right for you? I'm not getting into gas scavenging in this post.

you are wrong there shid bout it doubling the noise...it actually makes each side quieter, they may combine for the same overall noise level but it def does not make the car louder, ive heard a tt supra with dual exhaust and it sounds quieter then a friend's supra n/a with big single pipe, besides that its impossible to say that two exit points means twice volume..

Sorry, you're wrong.

It in no way makes it quieter, that goes against the laws of physics even. You're right, it has little to do with the volume of air (which is the same) but it has everything to do with the area the sound has to exit from the pipe and the effect that has on the resultant sound waves.

Try this, and see which one is louder:

Make two holes in the bottom of a coke can, put one side of headphones against the normal opening, and the coke can bottom against your ear.

Play music through the headphones. Use your finger to block one hole, and unblock it.

The dual is louder. Imagine that.

This post has been edited by shid: Oct 15, 2005 - 12:00 PM

Shin, I agree with everything you've said fully, except the louder thing. Freer flowing is freer flowing. You gave the example of poking a hole in the bottem of a pop can and then poking another. Well instead of doing that, just poke one big hole, noise with come out equally. Although, I'm not completely sure about the exhaust and how that would work. It really seems to me that the engine is what's making the noise, and it will only let out so much. The less restrictive the exhaust, the more noise. I guess it could cary better from 2 exit points. I'm really not sure enough to debate this now. Can you explain the priciples of it more clearly to me?

I am not versed enough to go fully into details,

Wikipedia is tho!

http://en.wikipedia.org/wiki/Acoustic_impedance

ok as i've said before NOISE HAS NOTHING TO DO WITH HOW MANY MUFFLERS YOU HAS

thats only a FRACTION of the equation people stop being so NARROW
its an exhaust SYSTEM not a exhaust muffler....

a system is multiple pieces that work in conjunction with eachother
if your goin to tell me that 1 muffler is ALWAYS quieter then 2 then shame on you, you need to go get educated cause in that statement there isn't any real defenition

noise is based on MANY variables
1) pipe diameter
2) catalytic converters
3) resonators
4) mufflers

ok now that you know how sound is controlled in a car
lets work things out

dual exhaust simply doesn't make it louder
normally they are JUST THE SAME.....
lets take for instance defgeph he has a single muffler on resonated and unsilenced
my dual tipped exhaust had no resonator but 2 silencers one for each muffler.....he's louder...not by much but he is....he also has a 3sgte i have a 7afe.....motor matters

its all in the design...if both single and duals are resonated and both are cat'd then you can achieve the same level of noise reduction.....the degree of loudness of any exhuast system IS NOT COMPARABLE AND YOU CAN NOT MAKE A CONCRETE FACTUAL STATEMENT BASED ON HOW MANY MUFFLERS YOU HAVE IT IS BUILT IN A SYSTEM AND VARIES ON SYSTEM DESIGN AND CONSTRUCTION