If I was only getting 30bhp from a JRSC then I'd be pretty pissed off with it. More to the point, I don't have as much room as the USDM EK Si and I'd lose the factory appearance of my car (and up insurance premiums).
Umm... drop in swap = engine bolts in to chassis with no problems. Hence the term "drop in"
If we were talking "turn key" swap then you could be right
