Subaru 2001 Model Year Onwards... This product supports 2001 onwards WRX Impreza, Legacy and Forester vehicles, and allows reprogramming of the standard OEM engine management unit. UK, US, Australian, South African, European & Japanese vehicles are all supported. This is the software that EcuTek use every day for tuning of this range of vehicles. Subaru 2004 Model Year Onwards (Electronic Throttle Control) Vehicles... This product supports 2004 onwards Impreza, Legacy & Forester vehicles (fitted with Electronic Throttle Control engine management), and allows reprogramming of the standard OEM engine management unit. UK, US, Australian, South African, European & Japanese vehicles are all supported. This is the software that EcuTek use every day for tuning of this range of vehicles.