Quote:
Originally Posted by Jschindler
My 99 started making an exhaust leak sound under load. I found the leak at the flange before the Cat on the Drivers side. I'm going to try a new flange gasket from Pelican.
If you find that you have the same leak, the Part Number is 996-111-113-02
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I hope this helps someone. I replaced the gasket mentioned above, but it did not change the sputtering sound I was getting. I tried smoke testing but found nothing. Started the car on a lift and found that the drivers side pre-cat joint was still leaking very slightly. I let the car cool and laid a bead of silicone window sealant around the leak. Let dry over night and that made all the difference in the world. Car sounds amazing now. When the silicone fails, maybe it won't, I will pull the header and get it welded up right.
Diagram below shows where I put the silicone in white.
