STRAIGHTLINE SIL. S-D 600 - 241-2135With more noise conscious environments Straightline Performance has taken action to make sure they manufacture mufflers that provide a weight loss, maintain OEM performance, and meet or surpass sound restrictions. All of this is achieved with no modifications to the original Lightweight ceramic muffler we have been selling for years now, no need to worry about upgrading to the newest latest muffler, as all previous manufactured mufflers are also