- Mar 27, 2003
- Fernie B.C.
I am going to get a high flow exhaust installed. My s/c 97 has 75,000 mi.. I have not looked too closely at the bolts, but I have not had rust issues removing anything else. I am more concerned how long my old ones will last and if they are functioning with all their marbles still. No codes. Ran an OBDII to check them for leaning out at high RPM last week. All indications were they worked properly. Should I get new o2 sensors or use the old ones?