Topic: Remove or Replace Catalytic Converter

[jssgbsn]

1985 22RE 4Runner

Live in Florida.  No emission requirments.

I got the original Catalytic Converter still.

Should I....

1.) Remove and not replace
2.) Replace with OEM
3.) Replace with High Flow Cat

[emsvitil]

If it's not clogged up, just leave it.

[twistedtoy92]

straight pipe it, open up the exhaust a few inches and let it breathe!

[2manytoys]

It'll be noisy without it.

[Cheesemaker]

straight pipe it, open up the exhaust a few inches and let it breathe!

I love it!!  :cheesy:

[twistedtoy92]

It'll be noisy without it.

I run a pacesetter header, 2 1/4'' through flowmaster 40 series to a 2 1/2'' tip on both of my yotas..... Works well for me! 

[Rocksurfer]

Unless you are going to redo the whole system just leave it. Though you could fab a bolt in bypass since it is the original, I've done this and it provided no benefit at all.

[Toyonrocks]

I lived in a no smog regs. county when I had my last truck. I removed the cat and put larger pipe out the rear end with a summit performance muffler. It was super loud. People thought I was running a V-8 conversion. Didn't feel any performance gain and it was annoyingly loud....

[Scrap123]

You can replace it and sell the original one. Some companies pay the value of your catalytic converter.
Ecotrade for example https://www.catalyticconverterrecycling.com/

1985 22RE 4Runner

Live in Florida.  No emission requirments.

I got the original Catalytic Converter still.

Should I....

1.) Remove and not replace
2.) Replace with OEM
3.) Replace with High Flow Cat

[Jimkola]

The OEM converter is stellar compared to the aftermarket ones out there. I think, imho, the aftermarket ones are junk. So even if you remove I’d hang onto it. Those older converters didn’t  have that much precious metal in them like the newer ones, so recyclers don’t give much for them anyway.