I'm sure the JWT ECU will work great; that's why I ordered one. My point was simply that if you want to maximize the ECU's settings for YOUR vehicle, you actually have to dyno tune it. I'm sure Jim Wolf would do it, but they'll need your car and more money. An AFR or FPR is a good idea. He's right that he will not "need" a piggy back, but if he wants optimal settings or the ability to make adjustments he will need a piggy back at the very least. Just want him to realize that Jim Wolf - #1 does not generally make customer-specific ECU's, although they do their best to make it sound sweet when you talk to them; and #2 in order for them to make your ECU specific to YOUR car, they will need YOUR car.