{"product_id":"arrow-pro-race-slip-silencer-stainless-steel-yamaha-yzf","title":"Arrow Pro-Race Slip-On Silencer Stainless Steel – Yamaha YZF-R3 (2021-2026) 71831PRI","description":"\u003cp\u003eRoad-legal and track-ready in equal measure, the Arrow Pro-Race 71831PRI is a homologated stainless steel slip-on silencer purpose-built for the Yamaha YZF-R3 (2021–2026). Carrying a full E-number type approval, it lets you ride to the track, remove the DB killer for a freer exhaust note on circuit, then ride home without touching a spanner — genuine dual-use performance from a manufacturer whose exhausts appear on World Superbike grids.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eE-number street homologation: fully road-legal straight from the box, no paperwork headaches or re-registration required.\u003c\/li\u003e\n\u003cli\u003eIncluded DB killer brings the silencer into legal sound limits for road use; remove it on track for an unrestricted exhaust note.\u003c\/li\u003e\n\u003cli\u003eAll-stainless steel construction throughout — canister body, end cap, and internal components — resists corrosion and withstands sustained high exhaust temperatures.\u003c\/li\u003e\n\u003cli\u003eAt just 1.12 kg the Pro-Race saves meaningful unsprung and chassis mass compared to the OEM unit, sharpening throttle response and improving weight distribution.\u003c\/li\u003e\n\u003cli\u003e250 mm canister length with a 45 mm inlet and 68 mm outlet diameter is optimised for the YZF-R3's engine character, promoting free-revving mid-range delivery.\u003c\/li\u003e\n\u003cli\u003eArrow recommends pairing this silencer with a dedicated ECU map developed specifically for the 71831PRI to unlock the full performance benefit on the YZF-R3.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eHomologation and Road Compliance\u003c\/h2\u003e\u003cp\u003eThe E-number approval is the headline specification here. Unlike many aftermarket systems that exist in a legal grey area, the Arrow Pro-Race 71831PRI has passed the European type-approval process for road use on the Yamaha YZF-R3. Ride it daily, use it for a track day weekend, and return to public roads with confidence. The supplied DB killer handles noise compliance without compromising the silencer's core flow characteristics — it slots in and out cleanly when conditions change.\u003c\/p\u003e\u003ch2\u003eBuild Quality and Materials\u003c\/h2\u003e\u003cp\u003eEvery component in the 71831PRI — from the internal baffling and perforated liner to the end cap and outer shell — is fabricated from stainless steel. This matters in daily use: road grime, rain, and road salt that would quickly pit lesser alloys are shrugged off by the stainless finish. The result is a silencer that looks as purposeful after three winters of commuting as it did when first fitted. The sporting aesthetic is uncompromised: the stainless finish suits the YZF-R3's angular bodywork and reads as genuinely premium rather than budget aftermarket.\u003c\/p\u003e\u003ch2\u003ePerformance on Road and Track\u003c\/h2\u003e\u003cp\u003eThe Pro-Race series sits at the sharper end of Arrow's catalogue — the name reflects its origins in circuit-derived development. The combination of a free-flowing 45 mm inlet, a 68 mm outlet, and a 250 mm body encourages the YZF-R3's parallel-twin to breathe more freely across the rev range, with the most noticeable gains in throttle response and upper mid-range pull. For riders who also use the bike on track, removing the DB killer sharpens the exhaust note and marginally reduces back-pressure, complementing an Arrow-specific ECU map for the best possible calibration.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThis silencer is a direct, bolt-on replacement for the standard exhaust on the following model:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eYamaha YZF-R3 — model years 2021, 2022, 2023, 2024, 2025, 2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003ePart number: 71831PRI. Always verify the part number against your specific model year before ordering. Arrow recommends fitting a compatible ECU mapping solution alongside this silencer for optimum fuelling calibration.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e71831PRI\u003c\/td\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\u003eType\u003c\/td\u003e\n\u003ctd\u003eSlip-on silencer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eStainless steel (body, end cap, internals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.12 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\u003e68 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHomologation\u003c\/td\u003e\n\u003ctd\u003eE-number (road legal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDB killer\u003c\/td\u003e\n\u003ctd\u003eIncluded\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":53168803283210,"sku":"71831PRI","price":354.62,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/71831PRI2222.png?v=1780815868","url":"https:\/\/inter-pace.com\/products\/arrow-pro-race-slip-silencer-stainless-steel-yamaha-yzf","provider":"Inter-Pace","version":"1.0","type":"link"}