trickFlow street heat intake

The opening for the Street Burner (Street Heat) intake is 75mm with not other choices, and you may lose just a little bit of "torque" down low, but you will make up for it in the mid-higher rpms.

i doubt it will make a real difference. it may pick up some power but the stock intake and stock heads are both the biggest restrictions on stock engines. replacing just the intake wont do much, replace the heads with some gt -40s or something to match the cobra intake better and you should feel a real nice boost in power.

and dont worry about the TB bore on the intake as long as its bigger than the TB then its fine, if not then it can be opened up easily with a grinder.

if the engine is stock i wouldnt mess with the intake. i'd save for heads and intake. or you could also get the cheap bolt ons, like the UD pullies or cheap cold air ( wont do much but it looks cool lol) a new mass air meter and bigger TB. all of which will compliment heads and intake later on, and will be something to tinker with in the mean time.

^^what he said. intake alone wont help much and the explorer is cheaper and from what I have seen makes more power down low.

Definitely a fair amount of power to be had with an intake swap, even with stock heads. The lower intake is far more restrictive than the heads themselves. It's worth doing the simple intake swap, even before adding heads.