For you guys who have not lowered your beloved busa but are giving it thought, I'll give you a bit of info you should consider.
There is absolutely nothing to gain by lowering your bike unless you are an avid drag strip patron. NOTHING! If they tell you it will handle better, don't let them get too close, as the sickness they have may be contageous?
What happens by lowering your bike is you change the rake on the forks as well as the angle of the swingarm, both are critical to your bikes handling performance. Ask any racer? Once you screw up all that engineering those little guys with no butts spent tons of time to develope, you just pissed it down the drain. And indeed it will handle like Sh!t. If you want your bike to turn in quicker, the proper way to achieve your desired effect is to shim the rear up, not drop the front. Rule of thumb is never to exceed 4mm in the rear or you can jepradize your high speed handling.
The second thing that becomes a problem when you lower the front an inch or more is the fender will smack your nose cowling when you hit a bump, jump on the brakes hard or just cornering hard can make your fender make contact with the nose cowling. Not good and may actually put your arse in the weeds in more than one situation. If you ride two up, you will most likely have your tire making contact with the rear undertail. Again, not good.
So if I were you, thinking about lowering your beloved busa to make it look cool, I would visit a suspension shop and chat about the pros and cons before I took advise from some of the guru's you find on the net.
Not even Valentino Rossi could ride your lowered busa through the twisties and compete with the paper boy on his schwin!
Good rule of thumb, if you don't know what you are doing, contact a professional. It will be money well spent.