I'm from PA. Couldn't drive it here on the road (legally)
1) Wouldn't pass PA state inspection due to the height of the turbo above the hood.
2a) Would most likely be a registration problem. Signifigant modification such as that would require either a "collectible plate". I doubt one of those would be issued for this car.
2b) Or would require an R title due to the modifications. Now I can see it having an R title maybe, but 99.999% of modified cars in PA do not carry an R title.
3) More registration probs...collector plate or R title regular plate, both involve an R title. In Pa, an R title requires an "enhanced inspection" to get the car on the road in the first place. It'* months of paperwork alone, and a real pain to get the car on the road. This sadly would not get past the inspection and therefore again not be titled for road use.
Now, everyone from PA, join in and scream with me....PA LAWMAKERS SUCK!!!!
Oh, if you really want to be serious, use a filter with the inverted cone in the nose, better air flow. Plus point it straight forward.