Cat converter needed

[toyomonkey611]

Hello all! i bought a used exhaust system locally, and when i removed it from the parts car the cat didnt rattle, but when i got it home, it sounds like theres rocks inside it. anyone have a cat for 85 federal emissions for sale, plus air suction valve?

[dlb]

cats can be bought new from lots of places, and aren't even necessary if you live somewhere that does not do smog testing. you could have a muffler shop remove the cat and replace it with straight pipe or a resonator.

[toyomonkey611]

I assumed that replacing the cat was necessary for exhaust back pressure, something about killing my exhaust valves. And i hope replacing the cat would solve the nasty smell my car makes. My car is exempt in Oregon.

[toyomonkey611]

Good news for me, i pulled the heat shields off the exhaust and got a baseball sized pile of dirt n rocks out. My cat isnt rattling at all now, it has a chance!