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Old 05-16-2000, 09:47 PM   #1
Scooby Specialist
Member#: 338
Join Date: Sep 1999
Chapter/Region: E. Canada
Location: Toronto
09 STi

Post Hissing Sound

Hi i recently removed my muffler on my car to repaint the pipe. However, when I put the muffler back on, the sound of it was different, and when shifting hard, theres sometimes what sounds like a short hiss coming from the car.

Is it possible that the rear section isnt mated to the mid pipe correctly? i checked it and the seal looks fine. Maybe I need a new gasket? If so, what is the part number?

Is it safe to be driving the car like this?

Ill take another look tommorow and take it off and put it back on just incase it didnt seat perfectly.

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Old 05-16-2000, 10:43 PM   #2

Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
16 WRX (white)
04 FXT (red)


I don't think there is any danger driving it like that, but I'd get it fixed, just so you don't have a leak that gets worse and worse until it busts.
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Old 05-17-2000, 05:12 PM   #3
Scooby Specialist
Member#: 972
Join Date: Feb 2000

there should be no problem what-so-ever. Heck, for a long time i was driving around with exhaust disconnected at the cat. (shh...not mee, ohh nooo) But i would still have it checked out, just to make sure that it is not something else, possibly major, (i highly doubt that it is...but better safe than sorry) and just have someplace check the exhaust out as well. My 2% of a buck.
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Old 05-17-2000, 05:21 PM   #4
Joel Gat, 1.8L
Scooby Specialist
Member#: 32
Join Date: Jun 1999

Lay behind your car with your head under the trunk and the car running. Take a piece of cloth or something in your hand and cover the exhaust tip. Push tight to completely block the exhaust and listen for a whole bunch of hissing. If you hear it, locate it. If it's that junction of the muffler to the center pipe, then go to any carparts store and get a new gasket - they're universal. Put some orange make-a-gasket all around the new one if you want, and you should be nice and quiet again.

Joel Gat, 1.8L is offline  

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