{"product_id":"arrow-71903ak","title":"Arrow Race-Tech Aluminium Slip-On Silencer BMW S1000RR K67 (2019-2026) 71903AK","description":"\u003cp\u003eEngineered exclusively for the BMW S1000RR K67, the Arrow Race-Tech 71903AK slip-on silencer delivers a seamless blend of road-legal practicality and genuine track-bred performance. Weighing just 2.93 kg, it sheds meaningful mass over the stock unit and slots straight onto your existing headers with no fuss — making it just as rewarding for a long motorway run as it is for a full-throttle lap day.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eE-marked and road legal: full homologation for unrestricted road use straight out of the box.\u003c\/li\u003e\n\u003cli\u003eAluminium silencer body: lightweight, heat-resistant and finished to a sporting standard that suits the S1000RR's aggressive styling.\u003c\/li\u003e\n\u003cli\u003eCarbon end cap: adds structural rigidity while giving the exit a premium, race-derived look.\u003c\/li\u003e\n\u003cli\u003eStainless steel internals: maximise corrosion resistance and long-term durability, season after season.\u003c\/li\u003e\n\u003cli\u003eRemovable dB killer: included for compliant road riding; pull it out for track days when you want the full exhaust note.\u003c\/li\u003e\n\u003cli\u003ePlug-and-play fitment: designed to bolt directly onto the OEM header for a straightforward installation with no cutting or fabrication required.\u003c\/li\u003e\n\u003cli\u003eFull-system upgrade path: compatible with Arrow headers to create a complete Arrow exhaust system for maximum power and throttle response gains.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Performance\u003c\/h2\u003e\u003cp\u003eArrow has built the 71903AK around a high-grade aluminium canister that keeps weight low without sacrificing structural integrity under sustained high-heat conditions. The carbon fibre end cap is not merely decorative — it resists heat and vibration at the silencer exit where temperatures are highest. Inside, the stainless steel packing and baffling are engineered to optimise gas flow for the S1000RR's four-cylinder engine, improving mid-range punch and top-end delivery over the factory unit. The inlet diameter of 60 mm and outlet of 50 mm are matched to the BMW's exhaust port dimensions for a gas-tight, rattle-free connection.\u003c\/p\u003e\u003ch2\u003eRoad and Track Use\u003c\/h2\u003e\u003cp\u003eThe included dB killer brings sound levels into line with typical noise regulations for road riding and track-day noise limits, while its tool-free removal takes seconds when the circuit gates open. Arrow recommends a custom ECU remap after fitting to unlock the full performance potential and optimise throttle response across the rev range — particularly worthwhile if you plan to pair this silencer with an Arrow header for a full-system setup.\u003c\/p\u003e\u003cp\u003eNote: the product image shown is a digitally rendered representation; an official Arrow product photograph for part number 71903AK was not available at time of listing.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBMW S1000RR (K67) — model years 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026\u003c\/li\u003e\n\u003cli\u003eCompatible with Arrow headers for full-system configuration\u003c\/li\u003e\n\u003c\/ul\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\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e71903AK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eBMW S1000RR K67 (2019-2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.93 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSilencer 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 fibre\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\u003eTotal silencer length\u003c\/td\u003e\n\u003ctd\u003e300 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet diameter\u003c\/td\u003e\n\u003ctd\u003e60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutlet diameter\u003c\/td\u003e\n\u003ctd\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHomologation\u003c\/td\u003e\n\u003ctd\u003eE-marked (road legal)\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\u003c\/table\u003e","brand":"Arrow","offers":[{"title":"Default Title","offer_id":53168792109322,"sku":"71903AK","price":2358.0,"currency_code":"QAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/71903AK.png?v=1780815388","url":"https:\/\/inter-pace.com\/ar-qa\/products\/arrow-71903ak","provider":"Inter-Pace","version":"1.0","type":"link"}