My girlfriend and I picked up our first subaru. Its a 04 wrx wagon. totally stock one owner car a lady had. Shes perfect! The car not the lady! Looking to do some minor mods. sounds like a uppipe is a must do then probably a muffler for some rumble and possibly a drop kit and some wheels.. What are the main concerns with routine maintenence? do they have timing belts? Will I need a tuner with a uppipe and muffler? any info and help would be great! Not new to turbo cars just subbies..