What Tuner Is It?

[90FXRS]

I saw one that comes with an ecm and O2 sensors. Constantly monitors the system and makes adjustments on the fly for correct AFR. Who makes it? I can't remember .

 

[joel]

One that comes to mind is the Thunder Max.
Could that be the one?

 

[Breeze3at]

Power Commander five, WITH Autotune.