thanks...when I said top end I meant mid-high rpm. I haven't seen a tundra dyno chart, but based on the factory stated horsepower # vs. its displacement compared to the titan's tells me that the tundra has better midrange to top end... thus my question on why

after looking at the specs it looks like the tundra has a slightly better compression ratio also which I'm sure helps with the baseline torque throughout the power band