It's strange, though, because I have a green filter and have not noticed the loss of the sound symposer. I also have Torrie's tune, so I don't know if that could somehow restore it?

 

I didn't notice it at first. It worked as usual. Maybe it's a gradual thing that requires a closed end filter to reset it.

Either way, I'm leaving the paper filter in for the rest of the winter.

 

Mine seems to still be working....

 

Don't know what to tell ya, I'm not an engineer.

Mine stopped working and I was about to make an appointment to have it serviced. Thought I better pull the Green Filter before it goes in. Installed the paper filter and it works.

 

Interesting... Did notice on the Cobb AP when I was looking at the data logging PIDs I thought I seen one for the Sound Symposer...

Ok, doubled checked and there is a entry for the Sound Symposer on the Data Log list... so the ECU most be monitoring it...

 

I've had it in for a week or so, sound symposer is still working fine, but now I'm worried.

 

Nothing to worry about. just makes the car too darn quiet!

 

Kinda the opposite of why I got the filter.

 

Unplug the symposer, it sounds better anyway.

- Drew

 

Without it, and a stock exhaust, it's pretty quiet.

 

Exactly.
I'd like to get to the bottom of this. If a simple filter upgrade could cause it to malfunction, I want to know why.

 

My radio is always too loud to hear anything but music...

 

Yea, what noise are you gusy talking about?

 

Knowing that a tune can control the sound symposer... I wonder if it could be set up to make it kick in earlier, perhaps make the ST a bit noisier.

Still very concerned about this though, as I wasn't planning on doing a tune for a while.

 

I'm not sure there's much to be concerned about because the symposer was merely an aesthetic benefit; I don't think it is mechanically important. I paid attention more closely this morning, and I still get symposer sound when I -really- punch it, but it's definitely less frequent than before. I've had my green filter for about 500 miles now.

 

It's been very cold here and I've had the Green Filter on for a month and my symposer still works fine.

 

Sound Symposer - YouTube

I understand now, yeah me!

 

Finally got my Green filter today and installed it earlier. Temps are around the 40's right now. Went for a quick test drive and my Sound Symposer was fine, in fact, it seemed louder. I would bet that's just a psychological thing though. Also, I really love the sound that the filter makes. I'll be sad when it starts to quiet down.

 

Why would it quiet down?

 

The filter or Sound Symposer?

 

Don't know. Was thinking someone might be able to shed some light on it.

 

Nothing on mine has quieted down since the Green install. It is louder than before and I have had mine on for about a month.

 

Hmm seems we have mixed results then. Interesting...

 

I'm sure it is in our heads

 

In your head, in your head,
Zombie, zombie, zombie,
Hey, hey, hey. What's in your head,
In your head,
Zombie, zombie, zombie?

 

Put a Magnaflow exhaust on your car and you won't notice any symposer...lol.
But, I still hear my filter even with my exhaust. Takes some getting used to...but reminds me of the big turbo cars at the drag strip, but with much smaller turbos and sound.

 

You guys crack me up sometimes.

 

Green filter running for about a month now....sound symposer works perfectly fine and been in the teens/20's in the mornings and mid 30's in the afternoon.

Only thing different is I can't keep my foot out of it from hearing the BPV now

 

Update to my last post. Took the car out today and it was around 36 degrees. Got on it and it is definetely quieter then before. You can hear the symposer but its nowhere near as loud as it is with the stock filter.

 

I'm having the same experience. The symposer is much less active. I miss it, especially because I can't afford a new exhaust at the moment.

Sho - did you ever install the K&N filter? I'm wondering if it would provide a nice compromise between increased flow and maintaining the symposer functionality, because it is a closed end filter.