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Cats bad but no check engine light

3K views 8 replies 7 participants last post by  Chuck59 
#1 ·
kinda afraid to mess with it.
I have noticed the cheapest options which have room for 02 sensor are ~250$

wondering if the car thinks it aint broke is there any downside to ignoring it?

If not whats the cheapest option that wont throw a code?

thank you
 
#3 ·
i would replace it soon as possible when mine went bad on my old truck i was barely able to go 70 and my foot was to the floor and i was losing speed. I'm in the same financial situation as you but i suggest you get it fixed otherwise you could be on the freeway and if the jeep stalls you could cause an accident. It will throw a check engine light soon mine did and it will do it when you can barely keep speed
 
#9 ·
I have NO performance issues at all, but my cats are literally coming apart. The outer shields are rusted loose and rattle. Looks like a real bear to work on. Was thinking of putting a header on and moving the cats back below the header. Any thoughts?
 
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