{"product_id":"can-am-defender-hd11-sport-muffler-and-mid-pipe","title":"Can-Am Defender HD11 Sport Muffler \u0026 Mid-Pipe","description":"\u003cp\u003e\u003cstrong\u003eCan-Am Defender HD11 Sport Muffler \u0026amp; Mid-Pipe\u003c\/strong\u003e is built for Defender HD11 applications. Review the fitment notes, included components and available options below before ordering.\u003c\/p\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cdiv\u003e\n\u003ch4\u003e\u003cstrong\u003eCan-Am HD11 Sport Muffler + Mid Pipe\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eTransform your Can-Am Defender HD11 workhorse into a true powerhouse with the RPM 2\/3 Exhaust System. This complete bolt on upgrade replaces both the restrictive factory muffler\u003cstrong\u003e \u003c\/strong\u003eand mid-pipe, increasing exhaust diameter for improved flow and all around performance gains. It delivers noticeable power gains on stock machines — and drastic improvements on tuned setups, all while maintaining excellent drivability and near stock sound levels.\u003c\/p\u003e\n\u003cp\u003eCrafted from premium 304 stainless steel and TIG welded for maximum durability, the RPM system reuses all factory mounting points, donut gaskets (included), and mid-pipe heat shields (new rivets included for easy reinstallation). Factory heat panels reinstall perfectly, though they're optional. The result? Superior flow, reduced operating temperatures, and significant weight savings compared to stock.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Gains\u003c\/strong\u003e: 3-5 HP on a stock HD11. Tuned machines see substantially higher gains thanks to the less-restrictive 2\/3 design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefined Sound\u003c\/strong\u003e: Slightly louder than stock at idle for that satisfying head turning startup, but remains very close to stock dB levels in the mid to upper RPM range. No excessive drone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooler Operation\u003c\/strong\u003e: Lowers EGTs \u0026amp; less bed heat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation\u003c\/strong\u003e: Direct bolt on using all factory mounts and hardware. No cutting or modifications needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight \u0026amp; Premium Build\u003c\/strong\u003e: TIG welded 304 stainless steel construction for lasting quality and finish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDecibel Levels\u003c\/strong\u003e (approximate):\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 dB louder than stock at idle\u003c\/li\u003e\n\u003cli\u003e2.5 dB louder than stock at 3000-5000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3-5 HP Gain (stock) \/ Much higher on tuned machines\u003c\/li\u003e\n\u003cli\u003eLower EGTs for better reliability\u003c\/li\u003e\n\u003cli\u003eRe-uses factory heat shields (new rivets included)\u003c\/li\u003e\n\u003cli\u003eIncludes factory donut gasket\u003c\/li\u003e\n\u003cli\u003eTIG-welded 304 stainless steel\u003c\/li\u003e\n\u003cli\u003eNo tune required (though highly recommended for max gains)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAll factory mounting points retained\u003c\/li\u003e\n\u003cli\u003eSignificant weight savings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Fits all year and model variations of the Can-Am Defender HD11.\u003c\/p\u003e\n\u003cp\u003eThis system stands out from slip-on-only options by addressing restrictions in both the muffler \u003cstrong\u003eand\u003c\/strong\u003e mid-pipe for better overall flow and performance. Perfect for work, trail, or play — without compromising the refined character of your HD11.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eReplaces OEM Muffler # 707603824 \u0026amp; Mid Pipe # 707603434\u003c\/div\u003e\u003ch2\u003eFitment \u0026amp; Ordering\u003c\/h2\u003e\u003cp\u003eConfirm the vehicle year, model and selected options shown on this page before checkout. Contact R1 Industries if you need help validating compatibility.\u003c\/p\u003e\u003ch2\u003eExplore Related UTV Parts\u003c\/h2\u003e\u003cp\u003eContinue your build with \u003ca href=\"\/collections\/can-am-defender-hd11-parts-accessories\"\u003eCan-Am Defender HD11 parts and accessories\u003c\/a\u003e and \u003ca href=\"\/collections\/exhaust-systems\"\u003eUTV \u0026amp; ATV Exhaust Systems \u0026amp; Parts\u003c\/a\u003e.\u003c\/p\u003e","brand":"RPM SXS","offers":[{"title":"Default Title","offer_id":67580415476014,"sku":"EKT-CA-34-PL","price":499.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0265\/4076\/9342\/files\/HD11SportMufflerMain.jpg?v=1790571695","url":"https:\/\/r1industriesoffroad.com\/products\/can-am-defender-hd11-sport-muffler-and-mid-pipe","provider":"R1 Industries","version":"1.0","type":"link"}