It has the correct part number but it does appear to have been modified. Not sure if what I see is the muffler burned out rusted or cut out just past the stinger but every TW I have owned had the turned down stinger like you other bike in the background. It also looks like your stinger is melting your blinker light housing so I would call it a failed attempt modification. Around $100 gets you a new muffler from partzilla.com but you have to be sure you are getting the correct one for your year model because I do know that at some point they did change the placement of the mounting bracket on the frame. TW Brian would probably know the exact date of that change.