I will be tieing the Wideband into the megasquirt but I will still have to buy a LC-1 as Megasquirt can only read the signal it does not have a converter built in. I may have worded that wrong as I am still learning the system. BTW I used the v3.0 board with a MS 1 chip. I am also using TFI to run my spark through the megasquirt. Its rather easy.