{"product_id":"akrapovic-racing-line-carbon-aprilia-rs-660-tuono-660-s-a6r5-aplc","title":"Akrapovic Racing Line Carbon Full Exhaust System Aprilia RS 660 \/ Tuono 660 (2021-2026) – S-A6R5-APLC","description":"\u003cp\u003eRead this part first: this system has no road approval. Akrapovic states it plainly — the product does not meet emission compliance requirements for street or highway use. It carries no EC and no ECE certificate, and fitting it to a registered motorcycle is the owner's legal responsibility. Everything below assumes a circuit.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e4.43 kg against the standard 6.8 kg: 2.4 kg and 34.9 per cent less\u003c\/li\u003e\n\u003cli\u003e4.1 PS (3.0 kW) more at 11,200 rpm, with peak output rising to 98.8 PS\u003c\/li\u003e\n\u003cli\u003e4.9 Nm more at 4,500 rpm — the largest single gain in the system, and it sits low\u003c\/li\u003e\n\u003cli\u003eCarbon fibre muffler outer sleeve, the racing material rather than a decorative wrap\u003c\/li\u003e\n\u003cli\u003eComplete system: headers, collector and silencer, replacing the standard exhaust path entirely\u003c\/li\u003e\n\u003cli\u003eNo remapping required despite the full replacement\u003c\/li\u003e\n\u003cli\u003eNo road approval — circuit use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhere the Gain Actually Sits\u003c\/h2\u003e\n\u003cp\u003eThe headline figure is 4.1 PS at the top, but the more interesting number is 4.9 Nm at 4,500 rpm. On a 659 cc parallel twin that is the middle of a corner exit, and it is where a rider on a track day spends far more time than at 11,200 rpm. A Racing Line that only worked at the peak would be a worse tool for the job this bike is used for.\u003c\/p\u003e\n\u003ch2\u003eThe Check Engine Light Is Expected\u003c\/h2\u003e\n\u003cp\u003eOn Euro 5+ machines with two lambda sensors the engine check light will come on after fitting, because the ECU detects a deviation in the stock catalytic converter's parameters. That is normal with this system and not a fault. It is also a second reason the part belongs on a track bike rather than a road one.\u003c\/p\u003e\n\u003ch2\u003eRS 660 and Tuono 660\u003c\/h2\u003e\n\u003cp\u003eThe RS is the faired sportbike; the Tuono is the naked version with a wide bar and a more upright seat. The engine, the frame and the exhaust routing are shared, so one system covers both, and the Factory versions of each — which change suspension and electronics, not the exhaust path — are included.\u003c\/p\u003e\n\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\n\u003cp\u003eS-A6R5-APLC covers the Aprilia RS 660 and Tuono 660 from model year 2021 through 2026, including the Factory versions. Installation is quoted at 90 minutes, which reflects a complete system: the standard headers, collector and catalytic converter all come off.\u003c\/p\u003e\n\u003ch2\u003eRoad Approval\u003c\/h2\u003e\n\u003cp\u003eNone. This product does not meet emission compliance requirements for street or highway use, and no EC or ECE certificate exists for it. It is a circuit exhaust. If you want an Akrapovic on a registered RS 660 or Tuono 660, ask us for the type-approved slip-on instead — we will point you at the right part number.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePart number: S-A6R5-APLC\u003c\/li\u003e\n\u003cli\u003eEAN: 3831126449780\u003c\/li\u003e\n\u003cli\u003eFitment: Aprilia RS 660, RS 660 Factory, Tuono 660, Tuono 660 Factory (2021–2026)\u003c\/li\u003e\n\u003cli\u003eSystem type: Racing Line, complete system\u003c\/li\u003e\n\u003cli\u003eMuffler outer sleeve: carbon fibre\u003c\/li\u003e\n\u003cli\u003eSystem weight: 4.43 kg (stock 6.8 kg, saving 2.4 kg \/ 34.9 %)\u003c\/li\u003e\n\u003cli\u003ePower: 98.8 PS at 10,950 rpm (stock 96.6 PS at 10,800 rpm, gain 4.1 PS \/ 3.0 kW at 11,200 rpm)\u003c\/li\u003e\n\u003cli\u003eTorque: 68.6 Nm (stock 67.3 Nm, gain 4.9 Nm at 4,500 rpm)\u003c\/li\u003e\n\u003cli\u003eRemapping: not required\u003c\/li\u003e\n\u003cli\u003eNote: engine check light appears on Euro 5+ machines with two lambda sensors\u003c\/li\u003e\n\u003cli\u003eInstallation time: approx. 90 minutes\u003c\/li\u003e\n\u003cli\u003eRoad approval: none — track use only\u003c\/li\u003e\n\u003cli\u003eCountry of manufacture: Slovenia\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Akrapovic","offers":[{"title":"Default Title","offer_id":53627293958410,"sku":"S-A6R5-APLC","price":573400.0,"currency_code":"XOF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/01_12bf2295-b5f8-4ead-b063-96bc456d69c6.png?v=1788520536","url":"https:\/\/inter-pace.com\/en-ci\/products\/akrapovic-racing-line-carbon-aprilia-rs-660-tuono-660-s-a6r5-aplc","provider":"Inter-Pace","version":"1.0","type":"link"}