{"product_id":"spark-exhaust-grid-o-silencer-with-heat-shield-yamaha-r9","title":"Spark Exhaust Grid-O Silencer with Heat Shield Yamaha R9 (2025-2026) G00SI42T","description":"\u003cp\u003eThe loudest thing Spark will sell you for an R9. The Grid-O is the muffler that runs on Moto2 and Superbike World Championship grids, where nobody measures decibels, and this is that silencer supplied as a group with its heat shield for Spark's Yamaha R9 collectors.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGrid-O titanium silencer, supplied complete with its heat shield.\u003c\/li\u003e\n\u003cli\u003eThe design Spark runs in Moto2 and Superbike, in series with no noise ceiling.\u003c\/li\u003e\n\u003cli\u003eVisible TIG weld seams — Spark leaves the welding on show rather than polishing it out.\u003c\/li\u003e\n\u003cli\u003eFull titanium construction.\u003c\/li\u003e\n\u003cli\u003eMounts to Spark's R9 collectors GYA8801 and GYA8802.\u003c\/li\u003e\n\u003cli\u003eMade by Spark in Mantova, Italy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality \u0026amp; Materials\u003c\/h2\u003e\u003cp\u003eGrid-O is the least compromised silencer in Spark's range because it was never asked to compromise. Where the Force Evo trades some flow for a lower reading and the Konix Evo is sized for European circuit limits, the Grid-O exists for grids that do not impose any. Titanium throughout, hand-welded, with the seams left visible — on a case rolled and welded by hand, the seam is the evidence of the work.\u003c\/p\u003e\u003cp\u003eThe heat shield in this group is the reason the part number ends in a group code rather than a bare silencer number. Fit a race silencer without one and the first casualty is a boot.\u003c\/p\u003e\u003ch2\u003ePerformance \u0026amp; Sound\u003c\/h2\u003e\u003cp\u003eThis is the option to choose when there is no decibel limit to respect and every reason to reduce restriction. Spark publishes no measured figure for the Grid-O on the R9 specifically; on other platforms where it does publish one, the Grid-O consistently sits at the top of the range. Treat it as a track-day-and-race-only proposition and check your circuit's noise policy before you commit — many European circuits will turn a Grid-O away.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eFits Spark's R9 collectors GYA8801 (Supersport chassis) and GYA8802 (standard chassis). It will not fit the standard Yamaha exhaust — the inlet is sized for Spark pipework. If your circuit enforces a limit, look at G00SI44T instead: the Force Evo in a 400 mm case, built specifically to bring the number down.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eNone, and this one is not marginal. The Grid-O is a competition silencer, it carries no EC approval, and it is loud enough that fitting it to a road bike would be obvious to anyone standing nearby.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number: G00SI42T\u003c\/li\u003e\n\u003cli\u003eType: Silencer group with heat shield\u003c\/li\u003e\n\u003cli\u003eDesign: Grid-O\u003c\/li\u003e\n\u003cli\u003eMaterial: Titanium, visible TIG welds\u003c\/li\u003e\n\u003cli\u003eHeat shield: included\u003c\/li\u003e\n\u003cli\u003eFits: Spark R9 collectors GYA8801 \/ GYA8802\u003c\/li\u003e\n\u003cli\u003eFitment: Yamaha R9 (2025-2026)\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":53605291655434,"sku":"G00SI42T","price":2949000.0,"currency_code":"KHR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/G00SI42T.png?v=1788505923","url":"https:\/\/inter-pace.com\/en-kh\/products\/spark-exhaust-grid-o-silencer-with-heat-shield-yamaha-r9","provider":"Inter-Pace","version":"1.0","type":"link"}