hey tony welcome to the forum, sorry took a while to reply , currently run a 03 wrx sti blobeye , great car great engine, some say the blob eyes had the best engines for tunning /increasing power as they had realy strong internals, especialy the later blobeyes that were wide track and had dccd control . some uprated stuff under teh chasis i beleive aswel . as for ppp , theres no longer an option to get ppp as far as im aware as its the prodrive performance pack and prodrive dont realy have anything to do with subaru now. there is however a similar company called Pro R . these upgrades arent a must as its just a remap basicly and couple other parts for it , you can get better or similar performance upgrade probably for cheaper doing some slight changes to the car , a good thing you could look at is go to andy forrests web page here > http://www.andyforrestperformance.co.uk/ which can give you prices of some stage 1 2 and 3 mods , and the rough performance increases you should get . and hes also regarded as the best mapper in the uk and holds world record in his own car that he runs . many people drive from all over to have their car mapped by him . but even if your not getting mapped by him a look on his website should give you an idea. sorry i cant help any more im not realy the mechanicly minded type but hope that info helps . oh and again welcome to the forum !!!!!!