I'm looking at buying a Power FC and a Datalogit. The only question I have is do I really need the Commander as well? If I have a Datalogit is there anything the Commander can do that would make it nice to have?

 

the commander is nice to have just o monitor what is going on with your car like, inj duty, knock, water temp etc etc, although it cane tune you ECU the datalogit is nice to fine tune it if you know what you are doing...I have it all but only use the commander as gauges and use the datalogit to tune.