{"product_id":"fmf-powercore-4-slip-on-muffler-yamaha-xt250-044448","title":"FMF - Powercore 4 Slip-On Muffler - Yamaha XT250","description":"\u003ch1\u003eFMF Powercore 4 Slip-On Muffler for the Yamaha XT250\u003cbr\u003e\n\u003c\/h1\u003e\n\u003cp data-path-to-node=\"1\"\u003e\u003cspan\u003eThe FMF Powercore 4 Slip-On Muffler (044448) is an aluminum and stainless steel exhaust upgrade engineered for the Yamaha XT250 dual-sport platform.\u003c\/span\u003e\u003cspan\u003e The factory XT250 exhaust is a heavy,\u003c\/span\u003e\u003cspan\u003e stamped-steel unit weighing nearly 9 lbs with restrictive internal baffles and an integrated chamber that restricts exhaust velocity and traps thermal energy against the rear shock and airbox.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003e\u003cspan\u003eConstructed in the USA,\u003c\/span\u003e\u003cspan\u003e the Powercore 4 utilizes an extruded aircraft-grade aluminum canister with a champagne-anodized finish paired with a stainless steel mid-pipe and Hi-Flo conical end cap.\u003c\/span\u003e\u003cspan\u003e Internally,\u003c\/span\u003e\u003cspan\u003e a straight-through perforated core wrapped in high-temperature packing reduces backpressure to improve low-end torque and mid-range throttle response on the air-cooled 249cc SOHC single.\u003c\/span\u003e\u003cspan\u003e Weighing just 3.\u003c\/span\u003e\u003cspan\u003e8 lbs (1.\u003c\/span\u003e\u003cspan\u003e72 kg),\u003c\/span\u003e\u003cspan\u003e it sheds approximately 5 lbs of high-mounted mass from the XT250 subframe.\u003c\/span\u003e\u003cspan\u003e The muffler includes a removable US Forest Service (USFS) approved screen spark arrestor,\u003c\/span\u003e\u003cspan\u003e maintaining legality on regulated public trails and backcountry BLM land.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"3\"\u003eFeatures:\u003c\/h4\u003e\n\u003cul data-path-to-node=\"4\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,0,0\"\u003e\u003cb data-path-to-node=\"4,0,0\" data-index-in-node=\"0\"\u003eSubstantial Mass Reduction:\u003c\/b\u003e\u003cspan\u003e Weighs 3.\u003c\/span\u003e\u003cspan\u003e8 lbs (1.\u003c\/span\u003e\u003cspan\u003e72 kg),\u003c\/span\u003e\u003cspan\u003e shedding approximately 5 lbs compared to the OEM stamped-steel muffler.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,1,0\"\u003e\u003cb data-path-to-node=\"4,1,0\" data-index-in-node=\"0\"\u003eStraight-Through Core Architecture:\u003c\/b\u003e\u003cspan\u003e Perforated inner core reduces exhaust restriction to enhance low-end roll-on torque and midrange throttle response.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,2,0\"\u003e\u003cb data-path-to-node=\"4,2,0\" data-index-in-node=\"0\"\u003eAircraft-Grade Aluminum Sleeve:\u003c\/b\u003e\u003cspan\u003e Extruded aluminum canister with a durable champagne-anodized coating that resists roost abrasion and corrosion.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,3,0\"\u003e\u003cb data-path-to-node=\"4,3,0\" data-index-in-node=\"0\"\u003eStainless Steel Mid-Pipe \u0026amp; Hi-Flo End Cap:\u003c\/b\u003e\u003cspan\u003e Hand-welded stainless steel construction withstands chassis flex and continuous single-cylinder engine pulses.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,4,0\"\u003e\u003cb data-path-to-node=\"4,4,0\" data-index-in-node=\"0\"\u003eUSFS-Approved Spark Arrestor:\u003c\/b\u003e\u003cspan\u003e Ships with an internal stainless mesh spark arrestor certified for US Forestry trail compliance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,5,0\"\u003e\u003cb data-path-to-node=\"4,5,0\" data-index-in-node=\"0\"\u003eFully Serviceable \u0026amp; Repackable:\u003c\/b\u003e\u003cspan\u003e Modular end-cap fastening allows routine repacking with FMF 4-stroke packing kits to maintain sound dampening and power output.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,6,0\"\u003e\u003cb data-path-to-node=\"4,6,0\" data-index-in-node=\"0\"\u003eMade in the USA:\u003c\/b\u003e\u003cspan\u003e Engineered,\u003c\/span\u003e\u003cspan\u003e manufactured,\u003c\/span\u003e\u003cspan\u003e and assembled at FMF headquarters in Rancho Dominguez,\u003c\/span\u003e\u003cspan\u003e California.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"5\"\u003eWhat's in the Box:\u003c\/h4\u003e\n\u003cul data-path-to-node=\"6\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,0,0\"\u003e\u003cspan\u003e1x FMF Powercore 4 Slip-On Muffler with Stainless Mid-Pipe (Part #044448)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,1,0\"\u003e\u003cspan\u003e1x Pre-Installed USFS-Approved Screen Spark Arrestor\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,2,0\"\u003e\u003cspan\u003e1x Stainless Steel Mid-Pipe Band Clamp\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,3,0\"\u003e\u003cspan\u003e1x Subframe Mounting Hardware Kit\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,4,0\"\u003e\u003cspan\u003e1x Installation Instructions Sheet\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ch4\u003e2008–2026 – Yamaha XT250\u003c\/h4\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-path-to-node=\"7\"\u003eFitment Notes:\u003c\/h4\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eCarbureted Models (2008–2012):\u003c\/b\u003e\u003cspan\u003e Direct bolt-on.\u003c\/span\u003e\u003cspan\u003e Re-jetting or pilot screw adjustment is recommended to prevent lean conditions and deceleration popping.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eFuel-Injected Models (2013–2026+):\u003c\/b\u003e\u003cspan\u003e Direct bolt-on.\u003c\/span\u003e\u003cspan\u003e The factory oxygen sensor is mounted in the OEM front header pipe and remains untouched.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eHeader Compatibility:\u003c\/b\u003e\u003cspan\u003e Slips directly onto the OEM Yamaha head pipe.\u003c\/span\u003e\u003cspan\u003e Also compatible with aftermarket FMF Powerbomb and Megabomb head pipes designed for the XT250.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\"\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003eSound Tuning:\u003c\/b\u003e\u003cspan\u003e Meets USFS requirements out of the box.\u003c\/span\u003e\u003cspan\u003e Compatible with FMF’s optional 96dB \/ 94dB quiet insert (sold separately) for additional decibel reduction in sound-sensitive areas.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.tmbrmoto.com\/collections\/fmf\" title=\"Shop TMBR MOTO for FMF motorcycle exhaust systems, parts and accessories.\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0622\/5720\/1317\/files\/FMF_BANNERS_b47a5e51-8c77-4a22-a28b-b8b700a6a0ef.jpg?v=1779296464\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0622\/5720\/1317\/files\/Made_In_The_USA_24865b83-5069-42c1-b4bc-9e28ee4fe2cb.jpg?v=1719961954\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePart Number: 044448\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"FMF","offers":[{"title":"Default Title","offer_id":44838086508709,"sku":"FMF-PWR-CR4-SLIP-XT250","price":379.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/5720\/1317\/files\/FMF_Powercore_4_Yamaha_XT250.jpg?v=1794119295","url":"https:\/\/www.tmbrmoto.com\/products\/fmf-powercore-4-slip-on-muffler-yamaha-xt250-044448","provider":"TMBR MOTO","version":"1.0","type":"link"}