I just finished my exterior/handling mods and im now starting to do engine upgrades. I bought a VS0, defi gauges (boost, oil, egt), greddy catback, and im currently trying to get my hands on a vf30. I just wanted to know what boost levels to set my car at. I think (not sure) the VSO tunes the chip for 15.5+/- but should I up the boost since im getting a vf30? I read on some post that different gears have diff. boost levels, i wanted to know how you set that. Im having a friend install all my stuff and he has alot of knowledge on subaru components but I just wanted to know what the safe boost levels would be. I want my car to GO...but its a daily driver car also and I dont want to strain the trans/engine to much. By the way, my gauges are in SI units so that should be a pain also...

 

The only advice I can safely give here is to not try to tune it yourself yet. Wait until you really, truly understand what it takes to do it. In the meantime, take it to those who already do know and pick their brains while they tune your car.