Nootenboom

I have a XJR1200 1995 with new exhaust pipes and origonal silencers direct no more muffler collector box at the end of the silencer pipes there is a riveted disc with a small opening in the center is about just under 1 inch, the question is how big should I make it to get a bigger sound like on a Harley? any suggestions At the moment the rear section is riveted with 3 rivets so I could drill them out to remove the section to make a larger opening. my e mail is [email protected]