only thing AEM really has over hondata is better datalogging, boost comp tuning, and a specific traction control function. Hondata can do VSS vs boost, multiple step rev limiters, full map tuning, etc.. what do you need that hondata can't do? Remember on a honda you gotta change triggers and such to make AEM work, it's a lot more of a pain in the ass than a supra or DSM where you can just solder 3 wires and plug it in and fire it up