Been using narrow band sensors for years and they are cheap. Tuning on a turbo car is far more sensitive to mistakes than a carb n/a application and I have not burned up any turbo engines tuning with them.
$40 for narrow band O2 gauge.
Once wide band came out there was a general drift towards them but for a typical car a needless expense.
Who makes these? are they complete kit with o2 sensor, wiring and gauge?
