I seriously considering upgrading my engine management to a better system but I wanted to know the pros and cons. RIght now the car has a split second. The motor is a twin turbo 522 stroker. Gen III 2006 Coupe. I am told the AEM is the way to go for a car like mine but wanted to hear it from the people who either have had it or drove a car with this in it. I searched a bunch of threads but I am not really coming up with the answer I am looking for. Any help would be great! I know there are a few guys who really know how to make the GenIII harness but assuming its done right is there a noticeable difference and tuning upside?