Denso oxygen sensor?

[packratbimmer]

Any experience with Denso oxygen sensors on the M20? My instinct was to stick with Bosch on the German car, but I winged it to try something new. Will be trying it out in a few days.

Mileage has dropped off, stinkin' start-ups, but otherwise running great. Unknown sensor so I thought I would start there as I have no means of testing a sensor properly.

[packratbimmer]

So far I am pleased with the Denso sensor. Drivability is great and I am getting around 22 MPG in city/secondary highway driving with 87 octane fuel - which is an improvement from previous situation. Will update after I make a road trip on the tollway.