Pro Circuit t4 exhaust

[sublime1970]

Anyone ever run a quieting tip and spark arrestor on a pro circuit t4 pipe. I have a 02 400ex. The thing is wicked as is, but we ride in a spot that is not well known and close to neighborhoods and i'm looking for the option to quiet that beast when riding there. Anywhere else ill let her scream. Any advise, or other options would be awesome

[nick249420]

my buddy has a z 400 with a procircuit pipe on it and i think they are suposed to have tuning disks with them so you can make them as loudor as quiet as you want .. but dont quote me on that