http://www.edmunds.com/insideline/do/Drives/Comparos/articleId=119281/pageId=118239#48
1st Place, of course, goes to
Power on wheels:
1st Place, of course, goes to

Power on wheels:

On the chassis dyno, the Tundra rocks above 5,000 rpm, though the Titan keeps up admirably up to that point. The Silverado's power wasn't as strong as we expected. The big jump in power at 5,650 rpm indicates the engine's calibration switch to open-loop, fuel-rich running to achieve Chevy's advertised power. Below 5,650 rpm, it's in closed-loop. You get 4 seconds of closed-loop operation every time the throttle's floored in the Silverado.