.....Are the Power Commanders worth the money? I have been told that they will make the engine run cooler since Harley leans the Ultras out so much to meet emissions standards. Also, do they have any other major function? Thanks. Steve

 

Power Commander will help your engine run better if it is tuned right, but the same goes for any ECM controller. I recommend having an experience Dyno tuner to do the deed.

 

If you dont have many mods you can get a PC from someone like Fuel Moto with a preinstalled map. Simple and worth it. Any major future mods should be dialed in by a dyno.

 

If it is programed right they are great, and work very well, improve overall preformance and engine cooling.

Steve