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Muffler removal issue

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I was removing the muffler from my 2003 C4S. I loosened the clamp and removed the 3 bolts attaching the bracket. I tilted the muffler down and was sliding it out wheel well when I felt a tug. There is a braided line attached to the muffler. I've attached some pictures of the line. The first pic is shot under the car looking forward. The second pic is shot from under the muffler. The line looks like a vacuum line. I was wondering if it is OK to disconnect this line. Any and all help is greatly appreciated.

Thank you.



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The switch was an option on the 996 series. It can be added later.

"The sound behavior of the system is controlled as a function of the vehicle speed. The mufflers of the sports exhaust system have an extra exhaust passage way, which is opened and closed by a control flap. The flaps are activated by means of a control unit, which receives a speed signal from the speedometer. This exhaust system produces a sporty, powerful sound when both flaps are open."

"If the flaps function as intended, vacuum is present at the vacuum modulators at a speed of approx. 45 kmh / 28 mph to approx. 68 kmh / 42 mph."

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Ok, thank you for the response. I'm very embarrassed but I found the switch. Not sure why but I thought the switch was for a floor lamp (I thought the bulb had just burned out). Very embarrassed to admit this. A bit of difference in the noise level.

Thank you both for replying. I got both mufflers on and off with no problems.

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