Originally posted by WiredWRX
So, what do you think it is. If it is gas, I am almost positive there are people here in Cali with crappy gas getting more then 17 lbs of boost. What do they have that I don't.
WHAT AM I MISSING.
They have bigger turbochargers. Perhaps the 18T can make a bit more boost, but can it do it with enough efficiency to avoid heating the intake charge enough to cause detonation on 91 octane? Your tuner didn't seem to think so.