{"product_id":"arrow-71929mk-indy-race-carbonio-aprilia-rs-660-tuono-660","title":"Arrow 71929MK Indy Race Homologated Carbon Silencer – Aprilia RS 660 (2020-2024) and Tuono 660 (2021-2024)","description":"\u003cdiv style=\"font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:#222;line-height:1.65;max-width:900px\"\u003e\n\n\n\u003cp style=\"font-size:16px;margin:0 0 18px\"\u003eThe \u003cstrong\u003eArrow 71929MK\u003c\/strong\u003e exhaust is the \u003cstrong\u003eall-carbon fibre\u003c\/strong\u003e version of the homologated Indy Race slip-on exhaust for the \u003cstrong\u003eAprilia RS 660 (2020-2024)\u003c\/strong\u003e and \u003cstrong\u003eTuono 660 (2021-2024)\u003c\/strong\u003e: carbon fibre body, carbon fibre end cap, carbon fibre mounting clamp and db-killer included.\u003c\/p\u003e\n\n\n\u003cdiv style=\"background:#fff5f5;border-left:4px solid #e63946;padding:14px 18px;margin:0 0 26px;border-radius:0 6px 6px 0\"\u003e\n\n\u003cp style=\"margin:0;font-size:15px\"\u003e\u003cstrong\u003eMust be fitted with Arrow headers.\u003c\/strong\u003e On the RS 660 and Tuono 660, the 71929MK cannot be fitted to the motorcycle's original headers: it must be fitted with either the homologated catalytic header kit \u003cstrong\u003e71755KZ\u003c\/strong\u003e or the racing kit \u003cstrong\u003e71755MI\u003c\/strong\u003e. This is the first thing to check before ordering.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003ch2 style=\"font-size:20px;color:#e63946;margin:0 0 14px;border-bottom:2px solid #e63946;padding-bottom:6px\"\u003eKey features\u003c\/h2\u003e\n\n\u003cul style=\"margin:0 0 26px;padding-left:22px\"\u003e\n\n\u003cli style=\"margin-bottom:8px\"\u003e\n\n\u003cstrong\u003eExposed carbon fibre body\u003c\/strong\u003e — not a carbon fibre end cap on a metal body: here the entire exhaust body is made of carbon fibre, including the weave.\u003c\/li\u003e\n\n\u003cli style=\"margin-bottom:8px\"\u003e\n\n\u003cstrong\u003eECE homologated for road use\u003c\/strong\u003e — when fitted with the 71755KZ catalytic headers, it remains road legal, with the db-killer already included.\u003c\/li\u003e\n\n\u003cli style=\"margin-bottom:8px\"\u003e\n\n\u003cstrong\u003eStainless steel interior\u003c\/strong\u003e — the part that comes into contact with hot exhaust gases remains metal, with carbon fibre forming the outer structure.\u003c\/li\u003e\n\n\u003cli style=\"margin-bottom:8px\"\u003e\n\n\u003cstrong\u003eDoes not affect the electronics\u003c\/strong\u003e — it does not require additional lambda or CO sensors.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003ch2 style=\"font-size:20px;color:#e63946;margin:0 0 14px;border-bottom:2px solid #e63946;padding-bottom:6px\"\u003eTechnical specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 26px;font-size:15px\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr style=\"background:#f7f7f7\"\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0;width:42%\"\u003e\u003cstrong\u003ePart number (MPN)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e71929MK\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eCarbon Indy-Race exhaust with carbon end cap\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"background:#f7f7f7\"\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eSpare part type\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eSlip-on exhaust silencer\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eBody material\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eCarbon fibre\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"background:#f7f7f7\"\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eRear end cap material\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eCarbon fibre\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eExhaust silencer interior\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eStainless steel\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"background:#f7f7f7\"\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eFrame mounting\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eCarbon fibre clamp\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eBody length\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e270 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"background:#f7f7f7\"\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eFitting diameter\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eø 54 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eOutlet diameter\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eø 58 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"background:#f7f7f7\"\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e1.93 kg\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eDb-killer\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eIncluded\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"background:#f7f7f7\"\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eLambda sensor \/ CO sensor\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eNot required\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eHomologation\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eECE homologated for road use\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"background:#f7f7f7\"\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eRequired headers\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eArrow 71755KZ (homologated catalytic) or 71755MI (racing)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eQuantity per vehicle\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e1\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"background:#f7f7f7\"\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003ePackage contents\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e1 exhaust silencer with db-killer\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eArrow Special Parts — Italy\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"background:#f7f7f7\"\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:10px 14px;border:1px solid #e0e0e0\"\u003eNew\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\n\u003cdiv style=\"background:#fffbea;border-left:4px solid #f0a500;padding:14px 18px;margin:0 0 26px;border-radius:0 6px 6px 0\"\u003e\n\n\u003cp style=\"margin:0 0 8px;font-size:15px\"\u003e\u003cstrong\u003e⚠️ Important notes\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 8px;font-size:15px\"\u003eThe exhaust silencer alone is not enough: one of the two Arrow header kits is also required. With the \u003cstrong\u003e71755KZ homologated catalytic headers\u003c\/strong\u003e, the system remains road legal; with the \u003cstrong\u003e71755MI racing headers\u003c\/strong\u003e, it becomes a track configuration.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 8px;font-size:15px\"\u003e\u003cstrong\u003eWhen installing the racing header kit, it is necessary to load the racing map by contacting an Aprilia dealer\u003c\/strong\u003e. Installation is recommended to qualified personnel.\u003c\/p\u003e\n\n\u003cp style=\"margin:0;font-size:15px\"\u003eCarbon fibre is chosen for aesthetics, not weight: as can be seen in the table below, this version weighs 100 grams \u003cem\u003emore\u003c\/em\u003e than the titanium version.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003ch2 style=\"font-size:20px;color:#e63946;margin:0 0 14px;border-bottom:2px solid #e63946;padding-bottom:6px\"\u003eCompatibility\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 12px;font-size:15px\"\u003e\n\n\u003cthead\u003e\u003ctr style=\"background:#e63946;color:#fff\"\u003e\n\n\u003cth style=\"padding:10px 12px;border:1px solid #e63946;text-align:left\"\u003eBrand\u003c\/th\u003e\n\n\u003cth style=\"padding:10px 12px;border:1px solid #e63946;text-align:left\"\u003eModel\u003c\/th\u003e\n\n\u003cth style=\"padding:10px 12px;border:1px solid #e63946;text-align:left\"\u003eYears\u003c\/th\u003e\n\n\u003cth style=\"padding:10px 12px;border:1px solid #e63946;text-align:left\"\u003eVehicle type Arrow\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003eAprilia\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003eRS 660 — Euro 5\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003e2020-2024\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003eKS\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"background:#f7f7f7\"\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003eAprilia\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003eTuono 660 — Euro 5\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003e2021-2024\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003eKS\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\u003cp style=\"font-size:14px;color:#666;margin:0 0 26px\"\u003eThe two motorcycles share the same Arrow KS vehicle type and the same system: the part number is unique for both. The RS 660 and Tuono 660 from 2025 are Euro 5+ and use a different system.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:20px;color:#e63946;margin:0 0 14px;border-bottom:2px solid #e63946;padding-bottom:6px\"\u003eComparison of the three finishes\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 12px;font-size:15px\"\u003eSame Indy Race line, same homologation, same fitting and outlet diameters. But they are not the same silencer with three different finishes: the «Dark» aluminium version has a body ten centimetres longer and a different mounting clamp.\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 26px;font-size:15px\"\u003e\n\n\u003cthead\u003e\u003ctr style=\"background:#f7f7f7\"\u003e\n\n\u003cth style=\"padding:9px 12px;border:1px solid #e0e0e0;text-align:left\"\u003eCode\u003c\/th\u003e\n\n\u003cth style=\"padding:9px 12px;border:1px solid #e0e0e0;text-align:left\"\u003eBody\u003c\/th\u003e\n\n\u003cth style=\"padding:9px 12px;border:1px solid #e0e0e0;text-align:left\"\u003eLength\u003c\/th\u003e\n\n\u003cth style=\"padding:9px 12px;border:1px solid #e0e0e0;text-align:left\"\u003eMounting\u003c\/th\u003e\n\n\u003cth style=\"padding:9px 12px;border:1px solid #e0e0e0;text-align:left\"\u003eWeight\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003e\u003cstrong\u003e71929MK\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003eCarbon fibre\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003e270 mm\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003eCarbon fibre clamp\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003e1.93 kg\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"background:#f7f7f7\"\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003e71929PK\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003eTitanium\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003e270 mm\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003eCarbon fibre clamp\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003e1.83 kg\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003e71929AKN\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003e«Dark» aluminium\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003e370 mm\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003eSteel clamp\u003c\/td\u003e\n\n\u003ctd style=\"padding:9px 12px;border:1px solid #e0e0e0\"\u003e2.23 kg\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\n\u003ch2 style=\"font-size:20px;color:#e63946;margin:0 0 14px;border-bottom:2px solid #e63946;padding-bottom:6px\"\u003eRelated products\u003c\/h2\u003e\n\n\u003cul style=\"margin:0 0 26px;padding-left:22px\"\u003e\n\n\u003cli style=\"margin-bottom:6px\"\u003e\n\n\u003cstrong\u003e71755KZ\u003c\/strong\u003e — homologated catalytic header kit, the choice for road use\u003c\/li\u003e\n\n\u003cli style=\"margin-bottom:6px\"\u003e\n\n\u003cstrong\u003e71755MI\u003c\/strong\u003e — racing header kit, for track use (requires the racing map)\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003ch2 style=\"font-size:20px;color:#e63946;margin:0 0 14px;border-bottom:2px solid #e63946;padding-bottom:6px\"\u003eWho it is perfect for\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 26px;font-size:15px\"\u003eFor anyone with a first-generation RS 660 or Tuono 660 who wants an exhaust silencer that stands out: the carbon fibre weave visible on the side of the motorcycle, with road homologation intact. It is an aesthetic choice, and should be made knowing that the titanium version costs less and weighs slightly less.\u003c\/p\u003e\n\n\n\u003cdiv style=\"background:#f0f9f4;border-left:4px solid #2e9e5b;padding:16px 18px;margin:0 0 26px;border-radius:0 6px 6px 0\"\u003e\n\n\u003cp style=\"margin:0 0 8px;font-size:15px\"\u003e\u003cstrong\u003e✅ Guarantee and quality — Moon Bike S.r.l.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin:0;font-size:15px\"\u003eOriginal \u003cstrong\u003eArrow Special Parts\u003c\/strong\u003e product, new and packaged. Moon Bike S.r.l. is based in Cercola (NA): official 2-year manufacturer's warranty, direct customer support in Italian, invoice and shipping throughout Italy with professional packaging.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003ch2 style=\"font-size:20px;color:#e63946;margin:0 0 14px;border-bottom:2px solid #e63946;padding-bottom:6px\"\u003eFrequently asked questions\u003c\/h2\u003e\n\n\n\u003cdiv style=\"margin-bottom:18px\"\u003e\n\n\u003cp style=\"margin:0 0 6px;font-size:16px\"\u003e\u003cstrong\u003eCan I fit the 71929MK to the original headers on my RS 660?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin:0;font-size:15px\"\u003eNo. On the RS 660 and Tuono 660, the exhaust silencer must be fitted with headers: the \u003cstrong\u003e71755KZ\u003c\/strong\u003e (homologated catalytic) or \u003cstrong\u003e71755MI\u003c\/strong\u003e (racing) kit is required. Arrow offers silencers for original headers on other motorcycles, but this is not the case for this part number.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003cdiv style=\"margin-bottom:18px\"\u003e\n\n\u003cp style=\"margin:0 0 6px;font-size:16px\"\u003e\u003cstrong\u003eIs carbon fibre lighter than titanium?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin:0;font-size:15px\"\u003eNot on this exhaust silencer. The 71929MK in carbon fibre weighs 1.93 kg and the 71929PK in titanium weighs 1.83 kg: carbon fibre weighs one hundred grams more. This is because the interior remains stainless steel in both, and only the outer casing changes. Carbon fibre is chosen for how it looks, not for its weight.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003cdiv style=\"margin-bottom:18px\"\u003e\n\n\u003cp style=\"margin:0 0 6px;font-size:16px\"\u003e\u003cstrong\u003eIs it still road legal?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin:0;font-size:15px\"\u003eYes, the 71929MK is ECE homologated and comes with the db-killer. For a complete road-legal system, it must be fitted with the homologated 71755KZ catalytic headers: these are the ones that retain the catalytic converter. With the 71755MI racing headers, the configuration becomes track-only.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003cdiv style=\"margin-bottom:18px\"\u003e\n\n\u003cp style=\"margin:0 0 6px;font-size:16px\"\u003e\u003cstrong\u003eDoes the ECU need to be remapped?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin:0;font-size:15px\"\u003eNot with the homologated 71755KZ catalytic headers. However, when installing the \u003cstrong\u003e71755MI racing header kit\u003c\/strong\u003e, it is necessary to load the racing map by contacting an Aprilia dealer. The exhaust silencer itself does not require additional lambda or CO sensors.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003cdiv style=\"margin-bottom:18px\"\u003e\n\n\u003cp style=\"margin:0 0 6px;font-size:16px\"\u003e\u003cstrong\u003eIs it suitable for both the RS 660 and the Tuono 660?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin:0;font-size:15px\"\u003eYes. The two motorcycles share the same Arrow KS vehicle type and the same system: the part number is unique. It is suitable for the RS 660 from 2020 to 2024 and the Tuono 660 from 2021 to 2024, both Euro 5. From 2025, the two motorcycles have moved to Euro 5+ and use different part numbers.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003cdiv style=\"margin-bottom:0\"\u003e\n\n\u003cp style=\"margin:0 0 6px;font-size:16px\"\u003e\u003cstrong\u003eIs it an original Arrow product?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin:0;font-size:15px\"\u003eYes: it is a new exhaust silencer produced by Arrow Special Parts in San Giustino, Italy, and it is the specific part number for the RS 660 and Tuono 660. It is shipped from Italy with an invoice and manufacturer's warranty; it is neither a copy nor a universal fitment.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\n\u003c\/div\u003e","brand":"Arrow","offers":[{"title":"Default Title","offer_id":57812797391196,"sku":"71929MK","price":590.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/3660\/0668\/files\/arrow-71929mk-terminale-indy-race-carbonio.png?v=1788261471","url":"https:\/\/www.moonbikesrl.it\/en-us\/products\/arrow-71929mk-indy-race-carbonio-aprilia-rs-660-tuono-660","provider":"Moon Bike S.r.l.","version":"1.0","type":"link"}