1. Ive been running 14 psi on my stock turbo and its got 170k on the clock, But its only a streeter so it doesnt see wot for too long and i change the oil at every 2.5k klms.
2. Im upgrading to GT30 soon though, BUT, in my opinion save your dollars (hide it from your misses) and buy quality later instead of sacrificing it now to save a couple of bucks.
3. A after market EMS is a must to get a safe tune in my opinion.
4. I have to many opinions, LOL.
5. My 2 cents.