[flee's big blue..]

If i were to get power commander what does it exactly do. I have upgraded full HMF pipe. And I have K and N air filter.

I want to know what it does if I am going to be spending over $350.

Thanks A lot!

If you installed aftermarket exhaust and intake filter, then you gonna need the fuel controller or your bike is running lean..look into getting pc3 or msd.