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Gaskets for the CAT??


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Posted

Im removing my old exhaust from after the CAT. When unbolting the pipe for the back end of the CAT, is there a gasket there that will need to be replaced at all? Also, can I just bolt the new pipe right up, or will I need to fill the seams at all?? Thanks.

 

-§teve

Posted

Im not sure what car/engine you have, but the 3.1 grand prix dont have any gaskets after the downpipe, its all welded.

 

-Jeff

Posted

The car in question is a '94 3.1 Lumina. If the pipe is just bolted to the CAT, I can handle that, but if it is also welded what do I do to break the seal?

 

-§teve

Posted

The whole thing is welded, no bolts. Unless it's been replaced, it's just welded.

Posted

no gaskets or bolts, if you cut off the cat your muffler will sound like shit, my buddy has a 94 catless lumina, trust me on this one...Regalized

Posted

my friend has a 3.1 in a 91 Sunbird with no cat. the stock muffler sounded good till he put on a glasspack!

Posted

I've got a Cutty w/ a 3.1 no cat and stock muffler, it sounds good. I have a TGP w/ stock muff's and no cat, and it sounds better. I've got a more different 5 speed TGP that has no mufflers, no kat, and it sounds BEST.

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