Quote:
Originally Posted by Coan
This is kind of a long shot, but I thought I'd throw this up here for a bit before I just take it to a shop and have a custom fix done. I'm looking for the two pre-cat pipes and the 2-into-1 cat with O2 sensor bung for an OBDII SVX. They must be leak free. If the gasket is bad I can replace that, but the pipes themselves have to be leak free, as well as still have enough material left on the flanges that they will still seal.
I did the aftermarket Magnaflow fix a couple years ago and it's starting to leak again, not to mention the check engine light that i have to deal with because it moved the O2 sensor to the front of the cat.
Let me know what you've got.
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Have a bung welded in behind the cat and you won't have a problem.
Other than that, depending on what parts you used, the 97 OEM cat and midpipe use a flange and flange gasket and not the donut gasket that the 92-96 models use. Based on your post, I'm guessing that connection was "hacked" in order to utilize the magnaflow.