Tomorrow, I'm testing them with a vantage.

I'm also going to use the modis and a 4-gas analyzer for some other tests, but that's for another post.

If you've tested the switching response time of your oem or aftermarket oxygen sensors, please list:

What it was in milliseconds.
Basic info on car (mileage, gen., model)

Thanks in advance, let's see if there's any TECH left in H-T.