The pipe in all its cardboard boxed glory.
14mm nut which needs to be removed. It is easiest to remove when you take the rear tire off or deflate it.
13mm nut can be removed without taking anything else off. You may need to knock on the pipe with a hammer to loosen it from the engine.
The pipe installed and ready to go. The overall top speed and acccleration is improved by about 5 MPH, and the perfrormance increase is really noticable, especially when riding two-up or when riding hills.