{"product_id":"yoshimura-low-volume-insert-kit-works-finish-ins-u-2-1-500-rs4-muffler-ins-26-k","title":"Yoshimura LOW VOLUME INSERT KIT WORKS FINISH INS-U-2 1.500\" RS4 MUFFLER – INS-26-K","description":"\u003cdiv class=\"trd trd--yoshimura\"\u003e\n\u003csection class=\"trd-hero\"\u003e\u003cp class=\"trd-eyebrow\"\u003eYoshimura · RS-4\u003c\/p\u003e\n\u003ch2 class=\"trd-headline\"\u003eLow-Volume Insert Kit for Yoshimura RS-4\u003c\/h2\u003e\n\u003cp class=\"trd-lead\"\u003eThe Yoshimura Low-Volume Insert Kit Works Finish INS-U-2 1.500\" RS4 Muffler is a replacement low-volume insert kit designed for Yoshimura RS-4 mufflers. It’s intended for riders who want an optional insert solution for applications that call for different sound restrictions, while keeping the muffler’s RS-4 configuration serviced with genuine Yoshimura components.\u003c\/p\u003e\n\u003cp class=\"trd-lead\"\u003eThis kit is non-spark arrested, and decibel reduction will vary by application. For correct application matching, the insert chart and the fitment resources on the page should be used to confirm compatibility before installation.\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-26-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-4\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\"\u003eRS-4 Replacement Insert\u003c\/h3\u003e\n\u003cp class=\"trd-card-text\"\u003eBuilt as a replacement low-volume insert kit specifically for Yoshimura RS-4 mufflers, this service part supports maintaining an existing RS-4 setup with the correct insert-style components. It’s suited for owners refreshing worn parts or setting up the muffler for a different sound restriction requirement.\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 Setup\u003c\/h3\u003e\n\u003cp class=\"trd-card-text\"\u003eYoshimura lists this kit as an optional solution for applications requiring different sound restrictions. Because decibel reduction depends on application, the final result can vary, making it important to confirm the correct configuration for the specific muffler and use case.\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 along with an end-cap collar and a set screw. These parts provide the necessary hardware for installing the insert into the RS-4 muffler as a complete low-volume insert kit assembly.\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-26-k-rs4-main.jpg?v=1792277980\u0026amp;width=1400\" alt='Yoshimura LOW VOLUME INSERT KIT WORKS FINISH INS-U-2 1.500\" RS4 MUFFLER – INS-26-K – What This Kit Is For' 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\"\u003eWhat This Kit Is For\u003c\/h3\u003e\n\u003cp class=\"trd-story-text\"\u003eThis Yoshimura kit is categorized under Replacement Service Parts and is designed around the RS-4 series muffler platform. It’s intended to serve as a low-volume insert option for riders who need a different sound-restriction configuration than their current setup. Since outcomes depend on application, confirming the correct insert selection for the muffler is an important step before installing.\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\"\u003eFit Confirmation and Install\u003c\/h3\u003e\n\u003cp class=\"trd-story-text\"\u003eBecause this listing does not specify a make, model, or year fitment set, confirming application is essential before purchase and installation. Yoshimura recommends using the insert chart to verify fitment for the intended application. An installation PDF is provided on the page to guide the install process with the correct steps for this kit.\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-26-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-4\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\u003e00840025920415\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-26-k-installation-manual.pdf?v=1792277977\" 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":68080819044503,"sku":"INS-26-K","price":37.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0585\/4884\/6743\/files\/yoshimura-ins-26-k-rs4-main.jpg?v=1792277980","url":"https:\/\/allamericanktm.com\/products\/yoshimura-low-volume-insert-kit-works-finish-ins-u-2-1-500-rs4-muffler-ins-26-k","provider":"All American KTM","version":"1.0","type":"link"}