Yes. There is a thread on the page before this about repacking the silencer. Was pretty straight forward. I decided to use the fibreglass wool packing, somebody else was going to use stainless. Pay your money and take your pick. I used this packing, it expands on heating and filled the silencer nicely:
http://www.ebay.co.uk/itm/Motorcycle-Exhaust-Can-Silencer-Re-Packing-Wadding-Sheet-450mm-x-1m-High-Quality-/181633559294?pt=LH_DefaultDomain_3&hash=item2a4a342afe
Take out the cap head screw and remove the aluminium endcap. It is a tight fit. Remove wire gauze and old packing, if there is any left. Look down the silencer and you will see a pipe. Cut a piece to fill the space around the pipe and stuff into the silencer. Cut another piece to fit around gauze, enough to make a snug fit between gauze and silencer body. Insert into silencer, replace end cap. Start engine and allow to heat up. Job done.
Made a big difference to the running of the bike.