Well, I see there seems to be a battle regarding this issue. I certainly don't disregard your vast experience, but at the same time, you can't disregard numbers.
You are right in saying there may be no HP when dyno'd. My question is how the test was conducted. All most all dyno's I have heard...
I've got a '04 Limited V8 4Runner and have done more research than I care to remind myself of. Regarding your question about the AIRRAID throttle body spacer, I just recently put one on. I am constantly monitoring my driving habits to get more of a real assessment regarding gas mileage- true HP...