Kymco K-Pipe 9" SS70 Oval Stainless Steel Muffler Delkevic US KIT25AQ Kymco K-Pipe 2013 Delkevic SS70 Mufflers are made from high grade 304 Stainless Steel with the same care and attention to detail we apply to all Delkevic Mufflers. They have a big 2 3/4 inch (70mm) outlet and are short, open, crisp and LOUD with the baffle removed, but with neighborhood friendly "db" levels with the baffle in. This set includes, Delkevic Mufflers with removable baffles, link pipes, straps, and clamps. No rejetting or remapping is required after fitment however we always recommend a dyno test after fitting replacement parts to your motorcycle. The weight of the Muffler is 3.04 lbs.