[QUO That's with no tune and just the mods shown in my signature.[/COLOR][/FONT][/FONT][/COLOR]

Why are you staying away from a tune? The tune is what makes all this extra "work".
You act as though your concerned about issues but the issues wouldn't be realevant if you were to just get the appropriate tuneing on your ECU. I think you would find more zip in your step with just the tune than with just the pulley.
If you are worried,
if you want power,
if you want to experiance the full ability of the gain in boost,
GET YOUR ECU SENT OUT TODAY!
I assure you, you won't be dissatisfied.
PS if you are they will turn it back to stock and refund your money. What have you to lose?
Mike