On page 49 of the 2005 owner's manual, the first picture shows a straight-through muffler.
The second picture shows a muffler that looks identical from the outside, but has two offset overlapping pipes.
The third diagram shows the back half of what appears to be an otherwise straight-through muffler, but it contains a spark-arrestor diffuser and chamber at the rear.
The second picture shows a muffler that looks identical from the outside, but has two offset overlapping pipes.
The third diagram shows the back half of what appears to be an otherwise straight-through muffler, but it contains a spark-arrestor diffuser and chamber at the rear.