Okay hopefully they are similar. The hardest part is separating the exterior can from the endcaps. They are riveted on and glued really good. Once you get the endcaps off you will have to see how the interior baffle is set up. You will likely only be able to cut it down from one end due to it being tapered at the other. Once you determine the length you need and cut the baffle and can accordingly then its just an easy job of rivets and sealant to button it all back up.
2004 CBR1000RR (Yelena)- modded track/street bike, 398lb RTR!
2002 RC51 (Christina)- rode hard and put away wet, sold
2006 CBR600RR (Nikki) - how the addiction started, sold