{"product_id":"vance-and-hines-upsweep-full-systems-1991-2009-harley-davidson-dyna-91","title":"Vance and Hines Upsweep Full Systems — 1991-2009 Harley-Davidson Dyna 91","description":"\u003cp\u003eVance \u0026amp; Hines Upsweep full exhaust system for 1991-2009 Harley Dyna 91, a 2-into-1 design hand-welded from lightweight 304 stainless steel with integrated PCX technology for enhanced low- to mid-range torque. Built on four decades of racing heritage to deliver both looks and performance.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eLightweight 304 stainless steel construction\u003c\/li\u003e\n  \u003cli\u003eHand TIG-welded seams\u003c\/li\u003e\n  \u003cli\u003eTrue merge collector design\u003c\/li\u003e\n  \u003cli\u003ePCX chambered high-flow catalyst\u003c\/li\u003e\n  \u003cli\u003eBrushed \"works\" finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Vance and Hines\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 27635\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 18.9 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 stainless steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Exhaust, Mufflers \u0026amp; Tips\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Harley-Davidson Dyna 91 models, 1991 through 2009.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eDoes this require a fuel map or tuner?\u003c\/h3\u003e\n\u003cp\u003eA fuel adjustment or dyno tune is recommended to optimize performance with the full system and PCX catalyst.\u003c\/p\u003e\n\u003ch3\u003eIs this system street legal?\u003c\/h3\u003e\n\u003cp\u003eThe PCX catalyst design is emissions-compliant. Check your state and local noise ordinances for exhaust sound limits.\u003c\/p\u003e\n\u003ch3\u003eWhat's included in the box?\u003c\/h3\u003e\n\u003cp\u003eThe complete 2-into-1 full exhaust system with all mounting hardware needed for installation on stock mounts.\u003c\/p\u003e\n\u003ch3\u003eWill this fit my 2010 Dyna?\u003c\/h3\u003e\n\u003cp\u003eNo — this part is specific to 1991-2009 Dyna 91 models. 2010-up Dyna models require a different system.\u003c\/p\u003e\n\u003ch3\u003eHow much power gain should I expect?\u003c\/h3\u003e\n\u003cp\u003eThe PCX technology generates stronger low- to mid-range torque. Exact gains depend on engine condition and tuning.\u003c\/p\u003e\n\u003ch2\u003eCalifornia Proposition 65 Warning\u003c\/h2\u003e\n\u003cp style=\"font-size:11px;color:#888;\"\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov\u003c\/p\u003e","brand":"Vance and Hines","offers":[{"title":"Default Title","offer_id":53040384639087,"sku":"T14-640689","price":1374.95,"currency_code":"USD","in_stock":false}],"url":"https:\/\/vtwinbikers.com\/products\/vance-and-hines-upsweep-full-systems-1991-2009-harley-davidson-dyna-91","provider":"Vtwinbikers","version":"1.0","type":"link"}