So heres the dilly yo, long story short I went over a tie down and it jumped up and hooked on the wire connecting to my cat. Check engine light came on a day or so later took it into the dealership for diagnostic where they told me the O2 censor was loose so they put it back all dandy like for free. Light came back on later than night took it back in a few days later they tell the wire (maybe they told me censor too) has to be replaced sense it got yanked out from when I ran over the tie down. That fine I figured as much sense I knew that was probably going to happen from the beginning. Where I need help is the part is 150 and for them to do it they're charging 323 without the discount. Does anyone know if this can be a DIY? If so does anyone know the part number number to the O2 censor or anything dealing with this issue? also I was wondering if I deleted my cat or just got a highflow cat would this wire or censor even be needed sense its deleted? Thanks for the help.