Does anybody know if the new EDGE Juice for the 04. 5 alters fuel rail pressure or just timing and duration. I read the article in the latest TDR issue and I don't want to push my luck with rail pressure. So I am considering using the Juice if it doesn't effect rail pressure, or if it does, keep my EZ on 1 and get a TST. Also, how is everybody's stock turbo holding up to the Juice on level 5, with the low boost fueling on 5 too? Thanks Jay