OK, I was just in the same boat as you. I installed the Edge Evolution, it gave me a little bump in performance, nothing to much. I really didn't want any thing much anyway. The gauge feed back is perfect, exactly what I wanted. I don't believe the factory gauges and this only proved it, and I got a pyrometer! It took me about an hour to install. I will do the EFI live as soon as I can afford it. For now this works fine.