Having accumulated over 20K miles on my Pro Duro street can, I can tell you it has no equal in aftermarket mufflers. Quality, durability are top notch and the sound is nice, but quiet. It does stick wayout the back of the bike... but, you'll never burn your rear fender, cook a saddle bag (if you use supports) and it just looks plain awesome on the KLR. Short mufflers are great if you like melted plastic.