View Here : St Maxx Vs Ko2
I have also heard the Cooper ST maxx is technically a mud tire but fits the all terrain rating and is reasonably quiet for the aggressive tread. ... I only put 500 miles on the KO2's before I changed to to the Nittos, but I didn't notice a difference in the ride quality or noise level compared to the KO2's.
Its been due for a while, and BFG finally did it. The KO2 is coming out and its got a more aggressive all terrain tread. Let me dig up some pics and kick the convo off with some info.