Does this have anything to do with the stock v. aftermarket exhaust/chip power claims?
10-28-2003, 04:13 PM
#1
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Does this have anything to do with the stock v. aftermarket exhaust/chip power claims?
<center><img src="https://www.audiworld.com/features/tests/2004_s4_002.jpg"></center><p>
"To achieve the sporty sound at low engine speeds while keeping the sound at higher speeds quiet, Audi has designed an innovative exhaust system that controls the path of exhaust gases through the muffler depending on the engine speed. Below 1700 rpm exhaust flows in an almost straight path through the muffler, while above 1700 rpm a flap in the muffler causes the exhaust to loop through the muffler, which in turn reduces the sound of the exhaust. The system as a whole works as advertised. "
yes or no, please explain your answer.
Tuners? pete? APR? pleae throw in your 2 cents!
"To achieve the sporty sound at low engine speeds while keeping the sound at higher speeds quiet, Audi has designed an innovative exhaust system that controls the path of exhaust gases through the muffler depending on the engine speed. Below 1700 rpm exhaust flows in an almost straight path through the muffler, while above 1700 rpm a flap in the muffler causes the exhaust to loop through the muffler, which in turn reduces the sound of the exhaust. The system as a whole works as advertised. "
yes or no, please explain your answer.
Tuners? pete? APR? pleae throw in your 2 cents!
10-28-2003, 04:47 PM
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Basically this thing causes restriction to flow...
And the fact that the high performance gains for exhaust mods are being experienced on the TT 3.2 support this because it has a similar system.
10-28-2003, 04:55 PM
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Audiworld! I am shocked this has not been brought up before. It is time.
<ul><li><a href="https://www.audiworld.com/features/tests/2004s4.shtml">audiworld article</a></li></ul>
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10-28-2003, 05:01 PM
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Re: Basically this thing causes restriction to flow...
I always keep this in the back of my mind while reading the banter back and forth.....yet no one has brought it up!!!!!
I think it explains a lot of what we are seeing.
thanks for the reply!
I think it explains a lot of what we are seeing.
thanks for the reply!