NTK O2 sensor ?
Heard some good stuff on NTK 02 sensors. 1. can anyone confirm this? 2. I have part number 21537 for 01 vette rear sensors...Is this correct for longtubes on a 01 ss?
a couple of heater codes on coated headers.
But they work OK, switching is a little raggedy
at idle. Can't say they're any better than any
other 'vette rear O2 option.


