{"product_id":"arrow-71929pk","title":"Arrow Indy Race Titanium Slip-On Silencer – Aprilia RS 660 (2020-2024) 71929PK","description":"\u003cp\u003eCertified for road use across all Euro 5 markets, the Arrow Indy Race 71929PK brings genuine race-bred engineering to the Aprilia RS 660 without compromising legal compliance. The titanium canister weighs just 1.83 kg, the carbon end cap adds a motorsport-grade finish, and the included db-killer keeps it street-legal from the moment it leaves the box.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEuro 5 approved with E-number homologation — fully road-legal across Europe straight out of the box\u003c\/li\u003e\n\u003cli\u003eTitanium canister at only 1.83 kg delivers a meaningful weight saving over the stock unit without sacrificing durability\u003c\/li\u003e\n\u003cli\u003eCarbon end cap pairs with the titanium body for a purposeful, track-inspired aesthetic that suits the RS 660's aggressive styling\u003c\/li\u003e\n\u003cli\u003eStainless steel internals resist corrosion and heat fatigue across tens of thousands of kilometres\u003c\/li\u003e\n\u003cli\u003eSupplied with db-killer for compliant road use; remove it on track for a more aggressive exhaust note\u003c\/li\u003e\n\u003cli\u003ePlug-and-play fitment — no cutting, no welding, no specialist tooling required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRoad Use and Legal Compliance\u003c\/h2\u003e\u003cp\u003eArrow's E-number approval means the 71929PK meets Euro 5 noise and emissions standards. Fitting it does not invalidate your road registration, and it will pass roadside technical inspections when the db-killer is installed. For riders who want to stay on the right side of the law without sacrificing character, this is the defining reason to choose the Indy Race over an unapproved race-only alternative.\u003c\/p\u003e\u003ch2\u003eBuild Quality and Materials\u003c\/h2\u003e\u003cp\u003eThe outer sleeve is formed from aerospace-grade titanium — inherently corrosion-resistant, lighter than steel and visually distinctive with its characteristic heat-tinted finish. The carbon fibre end cap is not cosmetic trim; it is a structural component that insulates the outlet and sheds heat efficiently. Inside, stainless steel baffles and packing components ensure the silencer performs consistently whether the RS 660 is used for a daily commute or a full track day.\u003c\/p\u003e\u003ch2\u003eExpanding to a Full System\u003c\/h2\u003e\u003cp\u003eThe 71929PK is a slip-on and must be used with an Arrow header pipe. It is designed to mate directly with the Arrow header 71755. Combining both components creates a complete Arrow exhaust system that improves throttle response, broadens the mid-range torque curve, and reduces total system weight further. Arrow and Inter-Pace recommend having a dedicated fuel map loaded when running the full system to unlock the maximum performance benefit.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAprilia RS 660 — model years 2020, 2021, 2022, 2023, 2024\u003c\/li\u003e\n\u003cli\u003eCompatible header: Arrow 71755 (required for fitment; not included)\u003c\/li\u003e\n\u003cli\u003eConnection diameter: 54 mm inlet \/ 58 mm outlet\u003c\/li\u003e\n\u003cli\u003eOverall silencer length: 270 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003e71929PK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e1.83 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCanister Material\u003c\/th\u003e\n\u003ctd\u003eTitanium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnd Cap Material\u003c\/th\u003e\n\u003ctd\u003eCarbon fibre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInternal Components\u003c\/th\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOverall Length\u003c\/th\u003e\n\u003ctd\u003e270 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInlet Diameter\u003c\/th\u003e\n\u003ctd\u003e54 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutlet Diameter\u003c\/th\u003e\n\u003ctd\u003e58 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHomologation\u003c\/th\u003e\n\u003ctd\u003eEuro 5, E-number road approved\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003edb-Killer\u003c\/th\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Header\u003c\/th\u003e\n\u003ctd\u003eArrow 71755\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Arrow","offers":[{"title":"Default Title","offer_id":53168789356810,"sku":"71929PK","price":1477.0,"currency_code":"BBD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/71929PK.png?v=1780815234","url":"https:\/\/inter-pace.com\/en-bb\/products\/arrow-71929pk","provider":"Inter-Pace","version":"1.0","type":"link"}