{"product_id":"arrow-thunder-aluminium-slip-silencer-yamaha-yzf-r3-71831ak-2021-2026","title":"Arrow Thunder Aluminium Slip-On Silencer Yamaha YZF-R3 (2021-2026) 71831AK","description":"\u003cp\u003eArrow's Thunder slip-on silencer gives the Yamaha YZF-R3 a genuine edge on track day and in daily riding alike. Tipping the scales at just 1.93 kg in a lightweight aluminium canister, the 71831AK sharpens throttle response and trims unsprung mass where it matters most — letting the R3 rev more freely and carry speed with greater confidence through corners.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAluminium canister construction keeps weight to 1.93 kg, improving throttle response and overall handling balance.\u003c\/li\u003e\n\u003cli\u003eCarbon end-cap delivers a motorsport aesthetic while withstanding prolonged heat cycles at the exit of the silencer.\u003c\/li\u003e\n\u003cli\u003eStainless steel internals resist corrosion and maintain consistent back-pressure characteristics throughout the product's lifespan.\u003c\/li\u003e\n\u003cli\u003eRoad-legal E-number homologation means the same silencer that works on circuit passes inspection for everyday street use.\u003c\/li\u003e\n\u003cli\u003eRemovable dB killer allows sound levels to be tuned to the track or road environment without permanent modification.\u003c\/li\u003e\n\u003cli\u003eDedicated Arrow mapping recommended to optimise fuelling and extract the full performance benefit on the YZF-R3.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEngineering Detail\u003c\/h2\u003e\u003cp\u003eThe Thunder's 250 mm canister is sized specifically for the YZF-R3's mid-range power characteristics. Both the inlet and outlet connections measure 45 mm in diameter, ensuring a clean, unrestricted gas flow path through the system. The aluminium body dissipates heat efficiently and resists the kind of fatigue cracking that can afflict heavier steel alternatives under repeated track use. Arrow's stainless steel internal packing retains its geometry even after prolonged high-rpm sessions, so the silencer performs on the final lap exactly as it did on the first.\u003c\/p\u003e\u003ch2\u003eRoad to Track Versatility\u003c\/h2\u003e\u003cp\u003eThanks to its E-number homologation, the 71831AK requires no additional paperwork for road registration in markets that accept E-marked components. The included dB killer keeps sound output within legal limits on public roads. For track days where noise regulations are less restrictive, removing the dB killer allows the Thunder to deliver the open, characterful exhaust note that Arrow is renowned for. Pairing the silencer with Arrow's dedicated fuelling map sharpens throttle response further, making the transition from street to circuit seamless.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eThe Arrow Thunder 71831AK is designed as a direct bolt-on slip-on silencer for the following:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eYamaha YZF-R3 — model years 2021, 2022, 2023, 2024, 2025, 2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNo additional brackets or adaptors are required. Arrow recommends fitting an appropriate fuelling map after installation to optimise performance.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eArrow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e71831AK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlip-on silencer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCanister material\u003c\/td\u003e\n\u003ctd\u003eAluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd-cap material\u003c\/td\u003e\n\u003ctd\u003eCarbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal material\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.93 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCanister length\u003c\/td\u003e\n\u003ctd\u003e250 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet diameter\u003c\/td\u003e\n\u003ctd\u003e45 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutlet diameter\u003c\/td\u003e\n\u003ctd\u003e45 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoad homologation\u003c\/td\u003e\n\u003ctd\u003eE-number approved\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003edB killer\u003c\/td\u003e\n\u003ctd\u003eIncluded, removable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eYamaha YZF-R3 (2021-2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Arrow","offers":[{"title":"Default Title","offer_id":53168803578122,"sku":"71831AK","price":447.44,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/71831AK222.png?v=1780815872","url":"https:\/\/inter-pace.com\/products\/arrow-thunder-aluminium-slip-silencer-yamaha-yzf-r3-71831ak-2021-2026","provider":"Inter-Pace","version":"1.0","type":"link"}