I was just wounder if the Profec E01 is the upgrade to the emanage itself or what the difference is. The descriptions on the greddy page doesnt really say. It seems like the Prefoc E01 is the emange PLUS the LCD and boost controller ? is this correct ? Im a lil confused on it. Im using it on my 98 GSR i have the Greddy 18G turbo kit and a 9.1:1 Built B18C1, i was looking into electronics and the Greddy stuff is what i want but i cant understand the difference. any help would be great !!!