You can do short route. It is easy if you don't mind putting a bit of work into it.
Needed:
Any 1g 2.5in "short route" FMIC pipe kit (I used lucas english's kit)
Any 1g "short route" FMIC
Modification you need to do to your VR4?
- Use torch/plasma cutter to remove material from the front sheetmetal around the bottom left/right of each side of your radiator area. This allows the short route pipes room to make it. The passenger side needs very little removed, you can squeeze the 2.5" pipe easily by bending in the superficial fins in the end of your radiator. The drivers side needs a bit more material taken off to allow piping to sneak by. But still this is very minimal.
-The 1g 14b/16g outlet pipe needs to be fabbed a bit to keep it from hitting the much closer vr4 radiator.
-Bumper support may need cut in order to fit thicker intercoolers. I cut out the middle of mine to retain fog lights nicely.
Here are a few pictures of the setup. I did it for pretty cheap (800ish bucks) and it is by far the "shortest" and best imo FMIC setup you can do for your VR4
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