resonator = sound reduction
muffler = more sound reduction
cat = emmisions clean up

 

lol well I knew that much man


I was moreover just curious about the physical construction of the components :-)

 

o.
well if you google it you might be able to find a pic or a drawing of one cut open so you can see what the internals look like.
but then again, its prob slightly diff on diff model cars...but still the same general concept and function.

 

It's all terminology ... aftermarket "resonator" is a just a straight-through muffler installed somewhere upstream of the main "muffler" at the rear of the car. The "muffler" can be of any type - baffled, chambered, reverse-flow, straight-through, or a combo of these types such as the turbo muffler.

Aftermarket "resonators" are filled with fiberglass to absorb sound at all frequencies just like all other straight-through mufflers. By the way the stock resonator is actually a true Helmholtz resonator, which is an empty sound chamber installed to cancel out a certain range of frequencies (rasp) which would otherwise make the stock exhaust sound like ****.

Adding a header changes the exhaust characteristics and introduces new rasp frequencies and/or makes the old raspies so much louder the stock resonator becomes useless.

An aftermarket tunable Helmholtz would be choice for eliminating specific rasp frequencies so you wouldn't have to convert your midpipe into one huge "resonator" ... unfortunately there are no aftermarket Helmholtz resonators that I know of ...

 

 

[/quote]x_Batman_x Posted: 6/30/08 6:06PM Post subject:

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doesnt sound bad. Post an updated video though :-)
[quote]
Sorry it took so long to get a current video of my exhaust to compare the before brake in and after brake in. You cant hear alot of difference but it is slightly louder in the second vid.
http://www.youtube.com/watch?v=253F-7jINNE

http://www.youtube.com/watch?v=wObeEuC8t9w

 

bottom line=header isnt worth it lol

 

eh I love my header. Just the improvement in looks alone makes it worth it. I get many compliments on it.