Hi there mate. I'm still familiarising myself with the Pao. I bought it converted from Japan.
As to the ECU, I believe I am using the factory one (I still have the mode dial).
All running gear is also the ST stuff... I guess the fronts are the biggest difference between an ordinary K10 and a EK10?
Still trying to solve my surging UFO problem.. Baked it, washed it with brake cleaner, no go.. Can't find a brand new one either..