I'm not sure if I understand you right.How much does that unit cost?.So you are saying the XV fuel injection is better reliabity and performace wise than the factory type injection? What kind of flexablity are you talking about? I could care less what the unit looks like, I just want it to be efficient, reliable and perform. I know that my unit has a programmable AEM thats very flexable also.Gee I wonder why they dont use it in production cars . From what I see dollar for dollar the factory injection is the way to go. But I am not a expert so school me. I appreciate your input,Thank You