Just make sure you install the whole system before you tighten' anything down, 'cause you may have to ajust the pipes and can to clear the fairing, swingarm, frame, etc. When you have it right, start tightening from the can, and work your way to the header pipes, then re-check your clearances
If your bike is F. I., I'm sure a P.C. with a map for your new system, will improve performance.