i have been thinking about a couple of swaps that i keep reading about here so here it goes: i have a 97 3.8 im looking to swap out for the same engine but the one from a 99+ cause of the extra hp that it gives. is the wiring harness going to be the same thing? also ive read about the swapping out the intake with the one in a windstar that everyone says it gives more power. do i have to swap out the whole intake or just the upper? im buying the motor by itself doing all the work outside of it . Any other suggestions would be greatly appreciated on what to do to it. the whole purpose of this car is to keep it as my daily driver just more fun. I do have a two other cars but i like driving this one to work the most because well its fun.