Hi, I also have an interest in the questions you are asking as I have an old 2001 Forester 2.0 S turbo which requires some tlc and would like to know what parts I can use from other Subaru's. I have an issue with rear sagging suspension and my turbo actuator is not operating. More importantly, I would like to know what parts I can change in order to gain more power and handling etc... I hope I am not interrupting. I am following this thread with interest. Thanks.