{"product_id":"yoshimura-r-11-stainless-slip-on-exhaust-1u0-158-5e50","title":"Yoshimura R-11 Stainless Slip-On Exhaust – 1U0-158-5E50","description":"\u003cdiv class=\"trd trd--yoshimura\"\u003e\n\u003csection class=\"trd-hero\"\u003e\u003cp class=\"trd-eyebrow\"\u003eYoshimura · R-11 · Slip-On\u003c\/p\u003e\n\u003ch2 class=\"trd-headline\"\u003eYoshimura R-11 Stainless Slip-On for Suzuki\u003c\/h2\u003e\n\u003cp class=\"trd-lead\"\u003eThe Yoshimura R-11 Street Series Exhaust System is a stainless slip-on designed for riders looking to sharpen the character of the GSR750 2011-16 and GSX-S750 17-23.\u003c\/p\u003e\n\u003cp class=\"trd-lead\"\u003eYoshimura reports measurable gains at key rpm points, and the R-11 is engineered to deliver the brand’s signature exhaust note. With development and manufacturing in Japan, this Street Series system is aimed at riders who want a refined, performance-focused upgrade without moving to a full exhaust.\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\"\u003e1U0-158-5E50\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"trd-chip\"\u003e\n\u003cspan class=\"trd-chip-label\"\u003eMaterial\u003c\/span\u003e\u003cspan class=\"trd-chip-value\"\u003eStainless\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\"\u003eR-11\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\"\u003eMaterials\u003c\/p\u003e\n\u003ch3 class=\"trd-card-title\"\u003eStainless slip-on design\u003c\/h3\u003e\n\u003cp class=\"trd-card-text\"\u003eThis R-11 Street Series system is a stainless slip-on exhaust, offering a focused upgrade to the muffler side of the bike while keeping installation straightforward. Its R-11 series configuration is built to enhance the overall riding experience with a purposeful aftermarket look and feel.\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\"\u003eEngineering\u003c\/p\u003e\n\u003ch3 class=\"trd-card-title\"\u003eSignificant weight reduction\u003c\/h3\u003e\n\u003cp class=\"trd-card-text\"\u003eYoshimura lists the stock system at 9.9 lbs. and the Yoshimura R-11 stainless at 5.5 lbs., helping reduce weight from the original unit. That drop is aimed at giving the bike a lighter, more responsive feel while maintaining the durability associated with stainless construction.\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\"\u003ePerformance\u003c\/p\u003e\n\u003ch3 class=\"trd-card-title\"\u003eProven claimed output gains\u003c\/h3\u003e\n\u003cp class=\"trd-card-text\"\u003ePerformance is supported by manufacturer-verified claims and the dyno chart shown on the page. Yoshimura reports up to 3.8% more HP @10,000 rpm and up to 5.4% torque @7,500 rpm, targeting stronger pull where these engines spend time under load.\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-1u0-158-5e50-r11-stainless-exhaust-main.jpg?v=1792273035\u0026amp;width=1400\" alt=\"Yoshimura R-11 Stainless Slip-On Exhaust – 1U0-158-5E50 – R-11 Street Series focus\" width=\"1400\" height=\"933\" loading=\"lazy\"\u003e\u003c\/figure\u003e\u003cdiv class=\"trd-story-copy\"\u003e\n\u003cp class=\"trd-label\"\u003ePerformance\u003c\/p\u003e\n\u003ch3 class=\"trd-story-title\"\u003eR-11 Street Series focus\u003c\/h3\u003e\n\u003cp class=\"trd-story-text\"\u003eYoshimura positions the R-11 as a Street Series Exhaust System created to improve the overall experience of the GSR750 2011-16 and GSX-S750 17-23 platform. As a slip-on, it’s designed to bring a sharper personality through reduced system weight and manufacturer-reported performance gains, while keeping the upgrade centered on the muffler assembly rather than a full exhaust replacement.\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-1u0-158-5e50-r11-stainless-exhaust-view.jpg?v=1792273035\u0026amp;width=1400\" alt=\"Yoshimura R-11 Stainless Slip-On Exhaust – 1U0-158-5E50 – Performance and sound character\" 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\"\u003ePerformance and sound character\u003c\/h3\u003e\n\u003cp class=\"trd-story-text\"\u003eThe R-11 is backed by Yoshimura’s published performance claims and the dyno chart available on the product page. Yoshimura reports up to 3.8% more HP @10,000 rpm and up to 5.4% torque @7,500 rpm. Sound levels are provided using J2825 standards, with readings listed at 2000 rpm and 5000 rpm for both stock and the R-11, helping riders understand how the sound profile changes with this slip-on.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\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-1u0-158-5e50-r11-stainless-exhaust-view-2.jpg?v=1792273035\u0026amp;width=1400\" alt=\"Yoshimura R-11 Stainless Slip-On Exhaust – 1U0-158-5E50 – Development and build origin\" width=\"1400\" height=\"933\" loading=\"lazy\"\u003e\u003c\/figure\u003e\u003cdiv class=\"trd-story-copy\"\u003e\n\u003cp class=\"trd-label\"\u003eDevelopment\u003c\/p\u003e\n\u003ch3 class=\"trd-story-title\"\u003eDevelopment and build origin\u003c\/h3\u003e\n\u003cp class=\"trd-story-text\"\u003eYoshimura states the R-11 is designed, developed and manufactured in Japan. That origin reflects the brand’s established approach to street-focused exhaust development, combining a distinctive R-11 series presentation with the stainless material specification listed in the product details for riders who want a purpose-built slip-on from Yoshimura.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"trd-section trd-section--performance\"\u003e\u003ch2 class=\"trd-section-title\"\u003ePerformance\u003c\/h2\u003e\n\u003cul class=\"trd-stats\"\u003e\n\u003cli class=\"trd-stat\"\u003eUp to 3.8% more HP @10,000 rpm\u003c\/li\u003e\n\u003cli class=\"trd-stat\"\u003eUp to 5.4% torque @7,500 rpm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"trd-caption\"\u003eFigures as reported by Yoshimura.\u003c\/p\u003e\n\u003cfigure class=\"trd-figure\"\u003e\u003cimg class=\"trd-figure-img\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0585\/4884\/6743\/files\/yoshimura-1u0-158-5e50-dyno-chart.jpg?v=1792273034\u0026amp;width=1600\" alt=\"Yoshimura R-11 Stainless Slip-On Exhaust – 1U0-158-5E50 – Yoshimura dyno chart\" width=\"1200\" height=\"800\" loading=\"lazy\"\u003e\u003cfigcaption class=\"trd-caption\"\u003eYoshimura dyno chart for this system.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003c\/section\u003e\u003csection class=\"trd-section trd-section--video\"\u003e\u003ch2 class=\"trd-section-title\"\u003eProduct Video\u003c\/h2\u003e\n\u003cdiv class=\"trd-video\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/kGRIU6pjXlM\" title=\"Yoshimura R-11 Stainless Slip-On Exhaust – 1U0-158-5E50 video\" loading=\"lazy\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen\u003e\u003c\/iframe\u003e\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\u003e1U0-158-5E50\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\u003eStreet Series Exhaust System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eR-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSystem Type\u003c\/th\u003e\n\u003ctd\u003eSlip-On\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eShipping Weight\u003c\/th\u003e\n\u003ctd\u003e9 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEmissions Compliance\u003c\/th\u003e\n\u003ctd\u003eQUALIFIED MANUFACTURER DECLARED \"REPLACEMENT PART\"\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--accessories\"\u003e\u003ch2 class=\"trd-section-title\"\u003eSound Insert Options\u003c\/h2\u003e\n\u003cdiv class=\"trd-table-wrap\"\u003e\u003ctable class=\"trd-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003ePart Number\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eType\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eIncluded With This System\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eINS-YJP-04-K\u003c\/td\u003e\n\u003ctd\u003eSound Insert\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\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-1u0-158-5e50-installation-manual.pdf?v=1792273030\" target=\"_blank\" rel=\"noopener\"\u003eInstallation Instructions (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":68080735387799,"sku":"1U0-158-5E50","price":659.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0585\/4884\/6743\/files\/yoshimura-1u0-158-5e50-r11-stainless-exhaust-main.jpg?v=1792273035","url":"https:\/\/allamericanktm.com\/products\/yoshimura-r-11-stainless-slip-on-exhaust-1u0-158-5e50","provider":"All American KTM","version":"1.0","type":"link"}