I used to own a '04 CBR600RR and loved it! To be honest as far as modifications go Subarus are easy to work on and as long as you have some mechanical skill you can do most of these things yourself? Unless time and warranty is an issue then I understand completely. What items were you looking at changing first? Maybe get used to it stock for a bit to really learn the cars dynamics then go to the mod list from there? Just suggestions on routes that I took myself....what color car/wheels are you getting?