KBscooter,
Adding to Jeff's above post. In order to have your motor dyno tuned, you need a "flash" tuner that can re-program the ECM. The bike goes on the dyno, the operator reads the inputs from the ECM and makes adjustments to fuel, air, timing, etc.. The changes are made directly to the ECM and become the new "program". These types of tuners "marry" to the VIN of the bike and can only be used on that bike.
The FP3 is a flash tuner but it lacks the tables of more sophisticated tuners like the Power Vision, SEPST, SERT, and TTS Mastertune. Addtionally, the app is required which means a PDA, cell phone, IPad, etc. are required to connect the FP3 so the tuner can see what's going and make changes. The tuners that I have heard from don't like this feature. The all have large monitors to read inputs and changes are much easier to make.
For a little more $$, one can purchase a more sophisticated system and also cough up the $$ for a dyno tune which runs about $300 I my neck of the woods. However, if the owner's plans are Stage I and maybe a mild cam, I think the FP3 and it's auto tune feature would be fine, particularly if there isn't easy access to a competent tuner. JMHO.