'06 Real Power Improvement

Originally Posted by usetosellhummer

I went from the 06 to 07 and there is a little improvement but not enough to get excited about. The heat issue I am still waiting on but it's been 100+ at 5,500 ft so any vehicle has a tough time with the thin air.

Only the V8 will cure the need for power. Regarding the 3.5 to 3.7 difference, it sounds like most are saying the difference is small.