{"product_id":"spark-exhaust-force-evo-silencer-with-heat-shield-yamaha-r9","title":"Spark Exhaust Force Evo Silencer with Heat Shield Yamaha R9 (2025-2026) GYA8801ST","description":"\u003cp\u003eThe Force Evo silencer group as supplied with Spark's World Supersport system for the R9: silencer plus the heat shield that Spark calls the carter. Sold separately for riders who already own the Spark collector, or who want to change the character of an existing system without replacing the pipework.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eForce Evo titanium silencer with carbon end cap, supplied complete with its heat shield.\u003c\/li\u003e\n\u003cli\u003eApproved for World Supersport competition.\u003c\/li\u003e\n\u003cli\u003eThe rib along the titanium case is structural as well as visual — it stiffens a thin-walled shell.\u003c\/li\u003e\n\u003cli\u003eBolts to Spark's R9 collectors; not a stand-alone slip-on for the standard exhaust.\u003c\/li\u003e\n\u003cli\u003eTitanium sleeve, perforated inner tube and inner end cap.\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\u003eThe Force Evo is the more restrained of Spark's two current race silencers. Its case is titanium with a single rib running the length and converging into the carbon end cap, and everything inside — the perforated tube, the inner cap — is titanium too, which is where the weight advantage over a steel-cased muffler comes from rather than from the visible shell alone.\u003c\/p\u003e\u003cp\u003eThe heat shield is included, and it is not cosmetic. On a race bike with rearsets, the shield is what stops a boot making contact with a component running at exhaust temperature. Spark supplies it as part of this group precisely because fitting the silencer without it is not a sensible option.\u003c\/p\u003e\u003ch2\u003ePerformance \u0026amp; Sound\u003c\/h2\u003e\u003cp\u003eForce Evo is the silencer Spark chooses when a series enforces a decibel ceiling. On the R9 Supersport system it contributes to the 102 dB at 5,000 rpm and 103 dB at 6,000 rpm Spark measures for the complete assembly without a dB killer. Fitted to a different collector those numbers will differ, so treat them as the system figure rather than a property of the silencer alone.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eDesigned for Spark's R9 collectors GYA8801 and GYA8802. It is not a slip-on for the standard Yamaha exhaust — the inlet is sized for Spark pipework. If you want a quieter option, Spark builds the same silencer in a 400 mm case as G00SI44T.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eNo EC approval. This silencer group is a competition component and is supplied for closed-circuit use.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number: GYA8801ST\u003c\/li\u003e\n\u003cli\u003eType: Silencer group with heat shield\u003c\/li\u003e\n\u003cli\u003eDesign: Force Evo\u003c\/li\u003e\n\u003cli\u003eMaterial: Titanium case, carbon end cap\u003c\/li\u003e\n\u003cli\u003eHeat shield: included\u003c\/li\u003e\n\u003cli\u003eHomologation: WSSP-approved competition part\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":53605288640778,"sku":"GYA8801ST","price":599.16,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/GYA8801ST.png?v=1788503007","url":"https:\/\/inter-pace.com\/en-ge\/products\/spark-exhaust-force-evo-silencer-with-heat-shield-yamaha-r9","provider":"Inter-Pace","version":"1.0","type":"link"}