PimpinWitLincoln
Registered
Hey, I have a high milage (173,000+) 94 base mark. How often should the o2 sensors be changed. I have not done this in the 3 years that I have owned the car and do not know if they were changed prior to my purchase. I intend on removing the 3rd cat and resonator and running duals with an x pipe and mufflers in the stock location. Any help would be greatly appreciated.
James
James