I was just wondering if there is anything to tune when dealing with crome's 2-step feature. Right now, Iam running on a crome base tune from phearable that includes a 4000rpm 2-step. I'am running 9psi and it runs good. I also just got crome-pro and am getting some drag radials. I was just wondering when I get my wideband and get tuned will I need to change anything in the fuel/timing tables for the 2 step? basically, I would like to know how it works? how/why does the car build boost? How much boost will it build?