Have had an X9 for a week now on a Ford Ranger XLS 3.2 Auto and find it to be a great improvement over the standard laggy throttle response. It would be good if you could dial back the auto setting a bit. It's a bit 'full on' at times when a slightly softer response would be better and smoother.
The cord coming out the right hand side only limits the mounting options. It would be better if you could open the back plate and redirect the cord to either side or the bottom.
Overall, well worth the investment.