bazzaz timing retard calibrator

[copskahn]

I have a 2006 Busa which i am running with an Ivans TRE, my question is this. I have heard alot about the Bazzaz timing retard calibrator , that it will increase hp and make the bike run better. should i swap out the Ivans TRE and replace it with the Bazzaz unit or just leave it the way it is. Anyone out there using the Bazzaz.. Thanks..