The coolest thing about JDM engines is that there are many recipes on offer. While the USA, for example, is mainly synonymous with the V8, JDM automakers ... like an ECU map, upgraded exhaust ...

Subaru, however, seems bent on keeping the really fun stuff on its home turf, including the delicious WRX STI S206 ... bearing turbo and reflashing the ECU for a total of 316 horsepower.