I need to know miles on your part if used. And how much. If you have it new let me know too. I would like to just be able to get a replacement cat and have it welded in because I can remove the header myself and take it to a custom fabrication shop. I replaced my stock o2 sensor with a Bosch sensor and found out that they are bad on the car so i would even take a used one just to get back to where I was at since I already threw out my stock one. Thank you!!!