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I recently had ANDIAL Racing install a PSE with switch on my 40th. I opted for the switch since my wife likes to roll stock when she drives it.

So here's my problem, I understand that there are baffles inside the muffler that are controlled by vacuum lines via switch. But sometimes the PSE sounds louder than some other times. :(

Since I have the switch, I'd like it to be as loud as possible! Is there a way to tune the baffle? Is there a possibility that the baffle is loose and that with the PSE 'ON' it's not completely open, thus varying the sound?

Before I installed the PSE, I had the Evo intake. To be honest, lately, the sound difference with the PSE and stock with the evo intake is very close. But, anywhere above 4,500 rpms, WOW!

So what do you guys think? How about you guys that had it installed w/o the switch? is it pretty loud? HELP!

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So here's my problem, I understand that there are baffles inside the muffler that are controlled by vacuum lines via switch. But sometimes the PSE sounds louder than some other times. 

You are aware of the automute function between 50 and 70 KM/H ??

You could have the vacuum lines check to see if there is any leak, as far as I know it it vacuum that is closing and opening the switch.


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Yup, I did the hack to eliminate the speed cutout.

thats a good idea. I don't think I can check for leaks myself.

so do you think there is a possibility that the baffle is not opening completely?

The default position for the PSE is open. That is, the vacuum valve is used to close the valve and send the exhaust through the muffler (quiet mode). If your vacuum is not connected - then the PSE would always be loud.

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ok, today was weird.

When I left home, I was still discouraged on how quiet the PSE was sounding. BUt, wehn I was coming home, it was noticebly louder! exactly what I was hoping it was going to sound like.

Is there a chance that with the PSE "OFF" it seals it off completely thus making it quiently stock, but when it's "ON" the baffle door only opens a little thus keeping it fairly quiet? And that door maybe a little loose, causing the loudness to actually flucuate?

does my hypothesis sound about right?

I was feeling really bummed, because I feel as though I dropped about $2500 for an exhasut that sounds "so-so".

I think my E500 with the RB tech exhaust sounds better.

then today it sounded great! there is gotta be a correctable solution.

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