Hello all, I need your help on an ad in Europe about an STI prodrive of 2009, 400 bhp. There is a RA badge in the back. So newbie questions follow; - Is this an orig RA model? - Is the car delivered with PPP included or is it an addon? - If PPP has been added later on how can I be sure its been installed properly? Should it be a certificate or similar documentation of some sort? - the ad says it has a HKS filter a HKS exaust 76mm. Are these part of the PPP or extras? Any comment will be helpful. Thanks a lot.