That is certainly one way to do it without the upfront cost of the iS.. Funny, I bought an iS because of what I believed the answer to the "less maint." position was, fuel injection. There are a number of people flying trouble free with the iS. Ross flew his across his continent of Australia. At least twice!. I know, if that ECU starts giving you problems, its gonna cost ya. Besides, be honest. If the after market fuel injection system is what you are contemplating, then you already agree its a wise way to start if you can afford it. IMHO.