Ultimately, Dynamometers or “Dynos” are great tools for seeing what a specific modification or tuning did for your car that day – but across dyno brands and types, cars, days, weather, altitude and other factors – dynos are not consistent, and as you will frequently hear from dyno operators, “just tell me what you want it to say.” asking participants to go get their car dyno’d for classing is an extra complication which doesn’t work anyway and just increases the barriers to entry.