{"product_id":"arrow-pro-race-low-full-exhaust-system-stainless-steel","title":"Arrow Pro-Race Low Full Exhaust System in Stainless Steel – BMW M1000RR K66 (2021-2026) 71204CP","description":"\u003cp\u003eThe Arrow Pro-Race Low complete exhaust system 71204CP is one of the most practical full-system upgrades available for the BMW M1000RR K66. Weighing just 3.62 kg and engineered to deliver measurable gains in throttle response and power delivery, it is the kind of bolt-on investment that rewards both dedicated track-day riders and serious club racers who want more from every session without compromising reliability.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStainless steel headers for outstanding heat resistance, rigidity and long service life across repeated high-temperature track cycles.\u003c\/li\u003e\n\u003cli\u003eTitanium silencer, end caps and internals for exceptional heat dissipation and an overall system weight of just 3.62 kg.\u003c\/li\u003e\n\u003cli\u003eRemovable dB-killer included — reduce noise levels for noise-sensitive venues, then pull it out for unrestricted performance when conditions allow.\u003c\/li\u003e\n\u003cli\u003e250 mm silencer length with a 68 mm outlet connection diameter, engineered for a precise factory-quality fitment.\u003c\/li\u003e\n\u003cli\u003eOptimised exhaust gas flow developed specifically for the M1000RR K66 platform, improving throttle response and peak power under racing conditions.\u003c\/li\u003e\n\u003cli\u003eStraightforward installation designed to integrate cleanly with the existing M1000RR K66 chassis and ancillaries.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Materials\u003c\/h2\u003e\u003cp\u003eArrow has paired two complementary materials to give this system the best of both worlds. The headers are fabricated from high-grade stainless steel — a choice that prioritises durability and dimensional stability under the sustained thermal loads generated by the S1000RR-derived four-cylinder engine. The silencer, end caps and all internal components are manufactured in titanium, which keeps weight to a minimum while handling heat more effectively than steel equivalents. The result is a system that feels purposeful and premium without unnecessary mass.\u003c\/p\u003e\u003ch2\u003eTrack-Day Practicality\u003c\/h2\u003e\u003cp\u003eEveryday track-day usability has been central to the design of the 71204CP. The included dB-killer fits securely and removes in seconds, meaning you can comply with circuit noise limits without carrying additional hardware. A custom ECU mapping is strongly recommended to unlock the full performance benefit of this system and achieve the sharpest possible throttle response across the rev range.\u003c\/p\u003e\u003ch2\u003eImportant Notice\u003c\/h2\u003e\u003cp\u003eRace-use only — this complete exhaust system carries no road-use type approval. It is intended exclusively for closed-circuit competition and track-day use. Ensure compliance with your venue's noise regulations when the dB-killer is removed.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe Arrow 71204CP Pro-Race Low exhaust system is designed and manufactured specifically for the following motorcycle:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBMW M1000RR K66 — model years 2021, 2022, 2023, 2024, 2025, 2026\u003c\/li\u003e\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\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\u003e71204CP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Type\u003c\/td\u003e\n\u003ctd\u003eFull exhaust system (Pro-Race Low)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eBMW M1000RR K66 (2021–2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader Material\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSilencer Material\u003c\/td\u003e\n\u003ctd\u003eTitanium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Caps \/ Internals\u003c\/td\u003e\n\u003ctd\u003eTitanium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Weight\u003c\/td\u003e\n\u003ctd\u003e3.62 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSilencer Length\u003c\/td\u003e\n\u003ctd\u003e250 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\u003eRace-use only — no road approval\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":53168793911562,"sku":"71204CP","price":1714.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/71204CP_046cccd2-a8db-4594-9827-71da7968cf1c.png?v=1780815476","url":"https:\/\/inter-pace.com\/products\/arrow-pro-race-low-full-exhaust-system-stainless-steel","provider":"Inter-Pace","version":"1.0","type":"link"}