I need to replace my rear 02 sensor(aftercat) and was wondering if there was anything else besides the stock one, The stock one is like $250, and would like one that connects like the stocker, I dont wanna have to splice an universal one in..

 

Hit up your local mitsu dealer mechanics. They pull O2 sensors all the time. You might have to splice the wires, but I bet you can get one for free like I did. it works like a champ too.

 

^^^Thats a good idea! If that doesn't work you can buy them from autzone, kragen, etc. where you don't have to splice, but your still looking around 100 bucks. To be honest the universal ones are incredibly easy to install. You just match up the 3 wires and use 3 connectors.

Theres also the rear O2 delete mod through the ECU that you can do as well. I've been doing that, but I think it may be preventing me from passing emissions.

 

i got a bosch universal one i am selling. just 4 wires. really easy.

https://www.evolutionm.net/forums/sh...d.php?t=357595

 

I got mines from oxygensensors.com Fast, cheap, and it works. Had it for over two years now with no problems. If I can remember, I bought mines for 50 shipped.
http://oxygensensors.com/index.php?&...024&height=768

 

don't replace it. just flash ur ecu to not read the rear o2 anymore. that is what ppl with cat-deletes do, like myself

 

^^ . Doesn't throw a CEL and passes emissions.