Well we know who the Tuner Junkies are!! Just Joking! Dyno's from different manufacturers can and will read differently. Those of us motorheads have seen all kinds of different ones can attest Dyno's are great tuning tools for the tuner to benchmark the mods on a vehicle. That's why people will ask what kind of Dyno was she run on as some Dyno's consistently run on the high side. And some Dyno's make others cry!! LOL!!