So had a good talk with my friends at super flow.. We spoke on recommended unit .. .. Most go with cost effective units. but stay away from the high end units.
So took my referrals and did my research. 1st recommendation was ECM(Engine Control and Monitoring in CA. .. i spoke with Dave, and was great to dive in an talk about the testing and versions, as the build high end ones for Dyno companies as well for all the OEM's.
Found out some good dirt.. They make many various units with a different company label.

There branded most basic use model is F/A1500, this bad boy runs $3,459 .. with all hardware.. but.. his inside share.. was that AFR500v2 with NTK Sensor Wideband Control Kits.. is there module the make, an third party label.
He said this is the best bang for the buck!.. #hptuners good work..

Second he said would be Dayton sensors.. which i am researching right now. ..

I did find this great reference graph from ECM which i figured you all would enjoy. ECM_Stoichiometry

ECM_Stoichiometry.pdf

THank you