So second post regarding this issue - mechanic (if I want to call him that) says I need a new front cat to replace the aftermarket full line exhaust cat he installed in 2020 which is no longer under warranty. I never looked at the original before he replaced it. I bought an OEM one from Toyota but do I need 2? Did it originally come with two on the 1997 80 series? Looks like I have a front and a back that connect end to end. I got one in today but when I looked at it I could tell it would only replace one. If it takes 2, are they the same part number? Can I connect the one I have to the full line exhaust aftermarket second one. Plus I now have an exhaust leak coming into the cabin and I can’t tell where it’s from but assuming it’s at the engine somewhere. Frustrated and wish I could find a decent local mechanic.