no real way to get both, sorry. Other than a total race build or SC there is no way to get much more power out of these engines. Header(s) and intake mods will gain maybe 5-7hp...combined. Add larger tires, a lift, armor, etc, etc and all you do is go backwards in MPG and HP.I have a 1998 3.4 I have trd headers and k&n intake I'm wanting to get a little more power I don't have the money to supper charge it. Ideas?