{"product_id":"yoshimura-sound-insert-kit-rs-12-muffler-1-625-ins-38-k","title":"Yoshimura SOUND INSERT KIT RS-12 Muffler, 1.625\" (INS-38-K)","description":"\u003cdiv class=\"trd trd--yoshimura\"\u003e\n\u003csection class=\"trd-hero\"\u003e\u003cp class=\"trd-eyebrow\"\u003eYoshimura · RS-12\u003c\/p\u003e\n\u003ch2 class=\"trd-headline\"\u003eLow-Volume Insert Kit for RS-12 Mufflers\u003c\/h2\u003e\n\u003cp class=\"trd-lead\"\u003eThe Yoshimura SOUND INSERT KIT RS-12 Muffler, 1.625\" (INS-38-K) is a replacement low-volume insert kit designed specifically for RS-12 mufflers. It’s intended for riders who need an optional sound-restriction change on applications that call for different sound requirements.\u003c\/p\u003e\n\u003cp class=\"trd-lead\"\u003eThis kit is identified by Yoshimura as non-spark arrested, and the amount of decibel reduction will vary by application. For application-specific confirmation, refer to the insert chart shown on the page and the included installation PDF link for guidance.\u003c\/p\u003e\n\u003cul class=\"trd-chips\"\u003e\n\u003cli class=\"trd-chip\"\u003e\n\u003cspan class=\"trd-chip-label\"\u003ePart Number\u003c\/span\u003e\u003cspan class=\"trd-chip-value\"\u003eINS-38-K\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"trd-chip\"\u003e\n\u003cspan class=\"trd-chip-label\"\u003eSeries\u003c\/span\u003e\u003cspan class=\"trd-chip-value\"\u003eRS-12\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003cdiv class=\"trd-cards trd-cards--3\"\u003e\n\u003carticle class=\"trd-card\"\u003e\u003cdiv class=\"trd-card-body\"\u003e\n\u003ch3 class=\"trd-card-title\"\u003eFor RS-12 Mufflers\u003c\/h3\u003e\n\u003cp class=\"trd-card-text\"\u003eBuilt as a replacement low-volume insert kit for Yoshimura RS-12 mufflers. It’s positioned within Yoshimura’s Replacement Service Parts line for servicing or updating an RS-12 muffler setup where a low-volume insert is desired.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/article\u003e\u003carticle class=\"trd-card\"\u003e\u003cdiv class=\"trd-card-body\"\u003e\n\u003ch3 class=\"trd-card-title\"\u003eOptional Sound Restriction\u003c\/h3\u003e\n\u003cp class=\"trd-card-text\"\u003eYoshimura notes this insert can be used as an optional kit on applications that require different sound restrictions. Because sound output can vary by setup, decibel reduction depends on the specific application.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/article\u003e\u003carticle class=\"trd-card\"\u003e\u003cdiv class=\"trd-card-body\"\u003e\n\u003ch3 class=\"trd-card-title\"\u003eKit Components Included\u003c\/h3\u003e\n\u003cp class=\"trd-card-text\"\u003eThe kit includes the low-volume insert tube, an end-cap collar, and a set screw. These pieces are intended to work together as the insert assembly for RS-12 mufflers.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/article\u003e\n\u003c\/div\u003e\n\u003csection class=\"trd-story\"\u003e\u003cfigure class=\"trd-story-media\"\u003e\u003cimg class=\"trd-story-img\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0585\/4884\/6743\/files\/yoshimura-ins-38-k-rs12-main.jpg?v=1792280244\u0026amp;width=1400\" alt='Yoshimura SOUND INSERT KIT RS-12 Muffler, 1.625\" (INS-38-K) – Purpose and Application' width=\"1400\" height=\"933\" loading=\"lazy\"\u003e\u003c\/figure\u003e\u003cdiv class=\"trd-story-copy\"\u003e\n\u003cp class=\"trd-label\"\u003eSound\u003c\/p\u003e\n\u003ch3 class=\"trd-story-title\"\u003ePurpose and Application\u003c\/h3\u003e\n\u003cp class=\"trd-story-text\"\u003eYoshimura’s INS-38-K sound insert kit is intended as a low-volume insert option for RS-12 mufflers. It can also serve as a replacement service part when an existing insert assembly needs to be refreshed. Yoshimura indicates it’s offered for applications that require different sound restrictions, making it a practical option when a setup calls for a change in sound control.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"trd-story trd-story--reverse\"\u003e\u003cfigure class=\"trd-story-media\"\u003e\u003cimg class=\"trd-story-img\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0585\/4884\/6743\/files\/yoshimura-ins-38-k-rs12-view.jpg?v=1792280244\u0026amp;width=1400\" alt='Yoshimura SOUND INSERT KIT RS-12 Muffler, 1.625\" (INS-38-K) – Sound and Spark Arrestor Note' width=\"1400\" height=\"933\" loading=\"lazy\"\u003e\u003c\/figure\u003e\u003cdiv class=\"trd-story-copy\"\u003e\n\u003cp class=\"trd-label\"\u003eFitment\u003c\/p\u003e\n\u003ch3 class=\"trd-story-title\"\u003eSound and Spark Arrestor Note\u003c\/h3\u003e\n\u003cp class=\"trd-story-text\"\u003eThis insert kit is listed by Yoshimura as non-spark arrested. Yoshimura also explains that decibel reduction depends on application, so results can differ based on the specific muffler setup and application details. To avoid mismatches, the page’s insert chart is the recommended reference to confirm correct fitment for a particular application.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"trd-story trd-story--text\"\u003e\u003cdiv class=\"trd-story-copy\"\u003e\n\u003cp class=\"trd-label\"\u003eInstallation\u003c\/p\u003e\n\u003ch3 class=\"trd-story-title\"\u003eInstallation and Contents\u003c\/h3\u003e\n\u003cp class=\"trd-story-text\"\u003eThe kit comes with the low-volume insert tube, end-cap collar, and set screw, providing the core pieces needed for the insert assembly. For install guidance, the page includes an installation PDF link.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"trd-section trd-section--specs\"\u003e\u003ch2 class=\"trd-section-title\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"trd-table-wrap\"\u003e\u003ctable class=\"trd-table trd-table--specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eINS-38-K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eYoshimura\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eProduct Line\u003c\/th\u003e\n\u003ctd\u003eReplacement Service Parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eRS-12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eShipping Weight\u003c\/th\u003e\n\u003ctd\u003e1 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBarcode\u003c\/th\u003e\n\u003ctd\u003e00840025914513\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"trd-section trd-section--docs\"\u003e\u003ch2 class=\"trd-section-title\"\u003eInstallation \u0026amp; Documents\u003c\/h2\u003e\n\u003cp class=\"trd-docs\"\u003e\u003ca class=\"trd-button\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0585\/4884\/6743\/files\/yoshimura-ins-38-k-installation-manual.pdf?v=1792280240\" target=\"_blank\" rel=\"noopener\"\u003eInstructions \/ What's Included (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"trd-caption\"\u003eProvided by Yoshimura. Opens in a new tab.\u003c\/p\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Yoshimura","offers":[{"title":"Default Title","offer_id":68080837460119,"sku":"INS-38-K","price":58.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0585\/4884\/6743\/files\/yoshimura-ins-38-k-rs12-main.jpg?v=1792280244","url":"https:\/\/allamericanktm.com\/products\/yoshimura-sound-insert-kit-rs-12-muffler-1-625-ins-38-k","provider":"All American KTM","version":"1.0","type":"link"}