I think the main reason for the 3K above run is that the tranni will kick down below 3200 rpm. The dip below 3K is probably the guy letting off the gas before the tranni kicked down - just my late night thinkig. Something else to think about is what gear the dyno was run in.
A forum community dedicated to Nissan Titan owners and enthusiasts including the 4x4 and XD. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!