Subaru's EJ20K was a turbocharged, 2.0-litre horizontally-opposed (or 'boxer') four-cylinder petrol engine. In Australia, the EJ20K engine powered the Subaru GC/GM Impreza WRX from November 1996 (for the 1997 ‘model year’ or MY97) to 1998. For the Subaru GC/GM Impreza WRX, key features of the EJ20K engine included: