You are wrong, they make them for gas and diesel. Just put put in your truck info and they have them customized to your vehicle. It works great on my ecodiesel
Huge lag after I did the recall. But purchased a pedal commander and truck runs way better than before. Simple $300 fix.just hook up to gas pedal and it has an adapter. Multiple settings for it. City+1 will take away lag. Sport+ on the other hand feels like a brand new truck.