pbrags

I have just bought a 2006 Subaru Impreza 2.5 WRX saloon and was told that it is a UK car with the prodrive engine kit and suspension. I can see that there are prodrive air pipes in the engine bay and the exhaust has prodrive written on it to but I am not 100% sure if it has this kit. My model code is GDGFK89 but I cannot find anywhere online that mentions this code, HELP !!