My father has a GMC Envoy, basically the same thing as the Trailblazer but with a better interior. Engine is awesome, plenty of low end torque but loves the high revs. Only major let down IMO is the 4 speed automatic behind it. Its gear ratios are just not suited at all for the 4200.

Also, 02 is 270HP, 03 is 275, 06+ had 291HP.