Okay, so I just found some narrowband sensors I thought I had lost. They're both NTK brand, both universal one is heated the other isn't. Does anybody know anything about these sensors? They're over 3 years old but brand new never been used.
Knowing their reputation for sensors I'd think these are on the same level as the ac delco units, just curious if anybody has used them or not.

 

Any help: http://www.lambdasensor.com/main/mcolours1.htm

 

Not really but good link non the less.
I need to know if anybody has used these sensors and where they stand. Do they perform like the crappy bosch sensors or are they ac delco type quality? I'd think they're closer to ac delco style only because NTK doesn't usually make cheap sensors. Just wanted to see if anybody had any experience with them or not, guess not.
I'll let people know how they work out.