{"product_id":"spark-exhaust-force-evo-400-mm-full-titanium-system-aprilia-rs-660","title":"Spark Exhaust Force Evo 400 mm Full Titanium Racing System Aprilia RS 660 \/ Tuono 660 (2020-2026) GAP8809T","description":"\u003cp\u003eThe long-silencer version. Same titanium collector as the rest of Spark's 660 range, with a 400 millimetre Force Evo case instead of the 350 — fifty millimetres of extra body, forty-eight euro of extra price.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFull titanium racing system for the Aprilia RS 660 and Tuono 660, 2020 to 2026.\u003c\/li\u003e\n\u003cli\u003e400 mm Force Evo silencer with carbon end cap.\u003c\/li\u003e\n\u003cli\u003eTitanium collector with CNC-machined couplings.\u003c\/li\u003e\n\u003cli\u003eCarbon cover over the connection.\u003c\/li\u003e\n\u003cli\u003eThree lambda probe sockets on the manifolds, Euro5+ compatible.\u003c\/li\u003e\n\u003cli\u003eRacing part, not approved for road use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFifty Millimetres More Case\u003c\/h2\u003e\u003cp\u003eVolume is what a silencer works with. A 400 mm body holds more absorption material than a 350 and gives the gas a longer path through it, which shows up as a quieter and deeper result rather than a peakier one.\u003c\/p\u003e\u003cp\u003eOn a 660 twin that is a reasonable trade. The engine does not need a short exhaust to breathe, and the longer case is the version to choose if the bike sees circuits that measure.\u003c\/p\u003e\u003ch2\u003eCheck the Space First\u003c\/h2\u003e\u003cp\u003eA longer case has to go somewhere. On an RS 660 with a standard tail there is room, but a race tail unit, a tail tidy or an aftermarket hugger can turn fifty millimetres into a clearance problem.\u003c\/p\u003e\u003cp\u003eSpark supplies the system with a hanger to the chassis for racing use and a mounting kit for the standard bike with passenger footrests, so both mounting positions are covered — but the space behind the shock is worth measuring before you order rather than after.\u003c\/p\u003e\u003ch2\u003eWhat Stays the Same\u003c\/h2\u003e\u003cp\u003eEverything in front of the silencer. The collector is the same fully titanium part with couplings machined from solid, carrying the same three lambda sockets, and the carbon cover over the connection is included exactly as it is on the 350 mm build.\u003c\/p\u003e\u003cp\u003eSpark states that the cover is not only cosmetic: with rear-set footrests it keeps the rider's boot off the pipe. That applies here in the same way.\u003c\/p\u003e\u003ch2\u003eAgainst the 350\u003c\/h2\u003e\u003cp\u003e2,012 euro against 1,964. Forty-eight euro is not the decision — the case length and what your circuit measures are. If neither matters to you, the shorter system GAP8806+GAP8807ST is the lighter of the two and reaches less far past the tail.\u003c\/p\u003e\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eFull system: the standard collector and silencer both come off. Spark's manifolds carry three lambda probe sockets and the company states compatibility with Euro5+ motorcycles, so the sensor arrangement on a current bike is catered for.\u003c\/p\u003e\u003cp\u003eThe kit includes a hanger to the chassis for racing use and a dedicated mounting kit for fitting to a standard motorcycle with the passenger footrests in place.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eAprilia RS 660 and Tuono 660, 2020 to 2026, as listed by Spark. The 350 mm Force Evo build is GAP8806+GAP8807ST, the Konix Evo system GAP8806T and the Grid-O system GAP8808T. The collector on its own is GAP8806.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eNone. Spark lists this article as not approved. Closed course only.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number: GAP8809T\u003c\/li\u003e\n\u003cli\u003eType: Full system, racing\u003c\/li\u003e\n\u003cli\u003eSilencer: Force Evo, 400 mm, titanium with carbon end cap\u003c\/li\u003e\n\u003cli\u003eCollector: titanium, CNC-machined couplings\u003c\/li\u003e\n\u003cli\u003eCover: carbon, over the connection\u003c\/li\u003e\n\u003cli\u003eLambda sockets: three, Euro5+ compatible\u003c\/li\u003e\n\u003cli\u003eRoad approval: none, track use\u003c\/li\u003e\n\u003cli\u003eFitment: Aprilia RS 660 \/ Tuono 660 (2020-2026)\u003c\/li\u003e\n\u003cli\u003eManufacturer: Spark Exhaust Technology, Mantova, Italy\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spark Exhaust","offers":[{"title":"Default Title","offer_id":53610555113738,"sku":"GAP8809T","price":2000.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/69934038c3969_255a3154-861e-4479-b488-285dcc117227.png?v=1788251244","url":"https:\/\/inter-pace.com\/en-pe\/products\/spark-exhaust-force-evo-400-mm-full-titanium-system-aprilia-rs-660","provider":"Inter-Pace","version":"1.0","type":"link"}