I'm getting a new header from Walt/Delta Group/OPM. I know they don't build them to be used with O2 sensors. What do I face if I don't use an O2 sensor? Is it not an issue since the engine is at wide open throttle most of the time and the ECU is in running in open loop?
Originally posted by R2 Racing@Oct 14 2005, 08:27 AM Yup, just get a bung welded in near the end of the header and us the O2 sensor. Running without it will cause way too many problems, IMHO.