{"product_id":"spark-exhaust-force-evo-silencer-cover-group-d-65-step2-yamaha-r1","title":"Spark Exhaust Force Evo Silencer \u0026 Cover Group D.65 STEP2 Yamaha R1 (2015-2025) G00SI40T","description":"\u003cp\u003eThe whole visible end of the exhaust, as one part number. Spark's 400 mm titanium Force Evo silencer together with the cover group — the carter, in Spark's own catalogue language — for the D.65 STEP2 full system on the R1.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eForce Evo silencer, titanium, 400 mm, with the cover group.\u003c\/li\u003e\n\u003cli\u003eFor Spark's D.65 STEP2 full system on the Yamaha R1 and R1M.\u003c\/li\u003e\n\u003cli\u003eWithin the 102 dB limit of the French championship and the Endurance World Championship.\u003c\/li\u003e\n\u003cli\u003eTitanium case with a rib converging into the carbon end cap.\u003c\/li\u003e\n\u003cli\u003eThe bare silencer without the cover is SGCM12400025T.\u003c\/li\u003e\n\u003cli\u003eNot interchangeable with the EWC specification group.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat the Cover Group Adds\u003c\/h2\u003e\u003cp\u003eSpark sells this assembly two ways: as the silencer alone, and as the silencer with its cover — the shroud that sits over the connection between the collector and the silencer. The difference between the two part numbers is a little over a hundred euros.\u003c\/p\u003e\u003cp\u003eTake the group if you are building the system from parts, or if the previous cover went down with the bike. Take the bare silencer if the cover on your R1 is intact and only the case needs replacing. Both are the same 400 mm Force Evo; nothing about the sound or the flow changes between them.\u003c\/p\u003e\u003ch2\u003eFour Hundred Millimetres\u003c\/h2\u003e\u003cp\u003eThe complete GYA8880T and GYA8881T systems ship with the shorter Force Evo. This group is the long one, and Spark is explicit that the longer Force Evo cases exist specifically to bring the sound level further down.\u003c\/p\u003e\u003cp\u003eThat makes this a sensible second silencer rather than only a repair part. One collector, two cases, and a bike that can be taken to a circuit with a strict limit on Saturday and one without on Sunday, with a ten-minute change in between.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eYamaha R1 and R1M, 2015 through 2025, on Spark's D.65 STEP2 collectors GYA8880R in titanium or GYA8881R in stainless. The equivalent group for the EWC specification is G00SI39T. The G9999 dB killer fits the Force Evo case.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eNone. No EC certificate, and the D.65 collector this belongs to removes the catalytic converter. Closed circuits only.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number: G00SI40T\u003c\/li\u003e\n\u003cli\u003eType: Silencer group with cover, full system\u003c\/li\u003e\n\u003cli\u003eDesign: Force Evo\u003c\/li\u003e\n\u003cli\u003eMaterial: Titanium with carbon end cap\u003c\/li\u003e\n\u003cli\u003eLength: 400 mm\u003c\/li\u003e\n\u003cli\u003eCollector diameter: 65 mm (STEP2)\u003c\/li\u003e\n\u003cli\u003eNoise: within the 102 dB French championship and EWC limit\u003c\/li\u003e\n\u003cli\u003edB killer: not included (G9999 optional)\u003c\/li\u003e\n\u003cli\u003eFitment: Yamaha R1 \/ R1M (2015-2025)\u003c\/li\u003e\n\u003cli\u003eRoad approval: None — track use only\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":53607174930698,"sku":"G00SI40T","price":1459.0,"currency_code":"BZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/g00si39t-daempfer_002afff6-0089-43d1-bd1a-533252253b0a.png?v=1788262361","url":"https:\/\/inter-pace.com\/en-bz\/products\/spark-exhaust-force-evo-silencer-cover-group-d-65-step2-yamaha-r1","provider":"Inter-Pace","version":"1.0","type":"link"}