I have no idea if the Evo/Ralliart/Lancer front O2 sensors are different, but i need one.

I need the front one, before the first cat converter.

 

you know they sell a universal one at autozone for pretty cheap that works. Look up your car on autozone and look for O2s it should give you a couple choices on the narow band and one is a "universal" that just requres some wire splicing.

 

well, i have one in excellent condition from an 03 evo.

 

how mch for the 03 evo one?

 

$50 with the O2 housing. didn't attempt to take off the sensor, so the head is not rounded.