Topic: Opened up the exhaust and the catalic con is empty. Now what?

[sharpxmen]

i would at least replace the muffler, uknown if that's the reason but just to make sure, the insides of the cat had to go somewhere so for that matter i would replace both.

[Jeffy]

Go to stock by fixing the problem at the source - get the replacement/performance/universal cat. Mechanics, future owners, or you will have less headaches that way. My 2 cents.

This would be my recommendation as well.

[andpgud]

I will then get an universal cat along with a new muffler.

What are the specs that the catalyc converter has to have?

[sharpxmen]

universal 2.25'' inlet/outlet

[grumpygy]

Reason I ask is the old owner could have gutted the cat.

[dwtaylorpdx]

Plugged fuel filter,, engine goes lean and the cat melts...
And blows out the tail pipe in itty bitty pieces..

My YJ did it twice...

Dave