JTEC's Side Mount Style Muffler is designed for those applications that a wrap around muffler may not fit. The Side Mount Style Muffler is designed to be a simple bolt on type muffler that has one exhaust tube coming out of your cowling. The Side Mount style muffler is designed to get great performance out of your engine but it is one of the louder options we offer due the limited volume of the muffler. Also this is one of the best options for engines that have an angled exhaust port on them like some of the 3W Engines, the Zenoah G-45 and similar engines.