{"product_id":"yoshimura-sound-insert-kit-rs-4d-muffler-top-1-000-ins-ta-k","title":"Yoshimura SOUND INSERT KIT RS-4D Muffler, TOP, 1.000\" (INS-TA-K)","description":"\u003cdiv class=\"trd trd--yoshimura\"\u003e\n\u003csection class=\"trd-hero\"\u003e\u003cp class=\"trd-eyebrow\"\u003eYoshimura · RS-4D\u003c\/p\u003e\n\u003ch2 class=\"trd-headline\"\u003eLow-Volume Insert Kit for RS-4D Top Outlet\u003c\/h2\u003e\n\u003cp class=\"trd-lead\"\u003eThe Yoshimura RS-4D Sound Insert Kit INS-TA-K is a replacement low-volume insert kit designed for RS-4D mufflers that use the top outlet end-cap configuration. It’s intended for riders who need an optional insert setup for applications that require different sound restrictions, with decibel reduction varying by application.\u003c\/p\u003e\n\u003cp class=\"trd-lead\"\u003eThis kit is listed for Honda CRF450R 2011–2012 and Suzuki RM-Z450 2008–2014 (see the fitment table below). It is a non-spark arrested insert kit and is supplied as a service\/optional component within Yoshimura’s Replacement Service Parts line.\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-TA-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-4D\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"trd-chip\"\u003e\n\u003cspan class=\"trd-chip-label\"\u003eFits\u003c\/span\u003e\u003cspan class=\"trd-chip-value\"\u003eHonda CRF450R; Suzuki RM-Z450\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\u003cp class=\"trd-label\"\u003eFitment\u003c\/p\u003e\n\u003ch3 class=\"trd-card-title\"\u003eRS-4D Top Outlet Fit\u003c\/h3\u003e\n\u003cp class=\"trd-card-text\"\u003eChecking the fitment information and insert chart is recommended to confirm the correct application.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/article\u003e\u003carticle class=\"trd-card\"\u003e\u003cdiv class=\"trd-card-body\"\u003e\n\u003cp class=\"trd-label\"\u003eSound\u003c\/p\u003e\n\u003ch3 class=\"trd-card-title\"\u003eLow-Volume Insert Design\u003c\/h3\u003e\n\u003cp class=\"trd-card-text\"\u003eThis kit is described as a low-volume insert solution for RS-4D mufflers. Yoshimura notes that decibel reduction depends on the specific application, making it a practical option when different sound restrictions need to be addressed for a given setup.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/article\u003e\u003carticle class=\"trd-card\"\u003e\u003cdiv class=\"trd-card-body\"\u003e\n\u003cp class=\"trd-label\"\u003eIncluded\u003c\/p\u003e\n\u003ch3 class=\"trd-card-title\"\u003eComplete Replacement Kit\u003c\/h3\u003e\n\u003cp class=\"trd-card-text\"\u003eThe INS-TA-K package includes the low-volume insert tube along with an end-cap collar and set screw. As a Replacement Service Parts offering, it’s suited for replacing a worn or missing insert assembly or setting up an optional insert arrangement on supported applications.\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-ta-k-rs4d-main.jpg?v=1792280539\u0026amp;width=1400\" alt='Yoshimura SOUND INSERT KIT RS-4D Muffler, TOP, 1.000\" (INS-TA-K) – Purpose-Built RS-4D Insert' width=\"1400\" height=\"1000\" 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-Built RS-4D Insert\u003c\/h3\u003e\n\u003cp class=\"trd-story-text\"\u003eYoshimura positions the INS-TA-K as a replacement low-volume insert kit for RS-4D mufflers, intended for the top outlet end-cap layout. It’s offered as an optional kit on applications that may require different sound restrictions, giving riders a straightforward path to configure or restore the muffler’s insert setup using the correct components.\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\u003ch3 class=\"trd-story-title\"\u003eSound and Spark Arrestor Notes\u003c\/h3\u003e\n\u003cp class=\"trd-story-text\"\u003eThis insert kit is specified as non-spark arrested. Yoshimura also states that decibel reduction depends on the application, so results can vary by model and configuration. For confirmation of the correct insert selection for a given setup, reference to the insert chart is recommended.\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\"\u003eFitment\u003c\/p\u003e\n\u003ch3 class=\"trd-story-title\"\u003eVerified Fitment Applications\u003c\/h3\u003e\n\u003cp class=\"trd-story-text\"\u003eFitment for this Yoshimura RS-4D sound insert kit is listed for Honda CRF450R 2011–2012 and Suzuki RM-Z450 2008–2014. Use the fitment table below to verify the listed models and years before ordering, and consult the installation PDF shown on the page for guidance during installation.\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-TA-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-4D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eShipping Weight\u003c\/th\u003e\n\u003ctd\u003e0.35 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBarcode\u003c\/th\u003e\n\u003ctd\u003e00840025917637\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--fitment\"\u003e\u003ch2 class=\"trd-section-title\"\u003eFitment\u003c\/h2\u003e\n\u003cdiv class=\"trd-table-wrap\"\u003e\u003ctable class=\"trd-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eMake\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eModel\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eModel Years\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF450R\u003c\/td\u003e\n\u003ctd\u003e2011–2012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eRM-Z450\u003c\/td\u003e\n\u003ctd\u003e2008–2014\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"trd-caption\"\u003eFitment as listed by Yoshimura for part number INS-TA-K.\u003c\/p\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-ta-k-installation-manual.pdf?v=1792280536\" 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":68080839852183,"sku":"INS-TA-K","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0585\/4884\/6743\/files\/yoshimura-ins-ta-k-rs4d-main.jpg?v=1792280539","url":"https:\/\/allamericanktm.com\/products\/yoshimura-sound-insert-kit-rs-4d-muffler-top-1-000-ins-ta-k","provider":"All American KTM","version":"1.0","type":"link"}