Well I just got done installing the Vance and Hines fuel pak and stage 1 breather, wow. Most definatly a difference. If you can see that much difference in just a fuel pak, man only wonders with a nicer tuner and a dyno!
Congrats on the successful install. Now remember your fuel mileage will drop and rear tire will wear faster do to excessive use of right wrist to experience maximum power and making noise.....