I call the dealers and all the service guys say screaming eagle is what they have had success with.

 

If you are relying on the dealer to do your tuning better go with what they say. Nothing wrong with the SEPST. If you are going to do your own tuning my preference would be the Power Vision then the TTS and then the SEPST. They are all flash tuners and don't have to stay on the bike. The Power Vision has a screen that can be mounted on bike if you like and monitor functions, record data, autotune, quicktune, read Trouble codes and clear codes, store maps and load maps all without laptop. It an the TTS can change the speedometer calibration also. You can get cables for the SEPST and do your own tuning also. They are all real close in price also. There are lots of other tuners available, just stating my preference.

 

im guessing you are asking what tuner to use.. if you are goin to take it in to get dynoed then i would recommend using whatever tuner the place that is doing the dyno says that they like working with...i have the screaming eagle tuner and it seems good to me but i didnt really care which one i got just went with it beacuse thats what they liked working with .