{"product_id":"spark-exhaust-grid-o-racing-full-system-yamaha-mt-09-2021","title":"Spark Exhaust Grid-O Racing Full System Titanium Pipe Yamaha MT-09 \/ XSR 900 (2021-2026) GYA8891T","description":"\u003cp\u003eSpark builds five full systems for the current MT-09. Four of them are homologated. This is the one that is not — stainless manifolds into a hand-welded titanium pipe, and the Grid-O that took the 2020 Moto2 title hanging off the end of it.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRacing full system for the Yamaha MT-09 (2021-2026) and XSR 900 (2022-2025).\u003c\/li\u003e\n\u003cli\u003eAISI 304 stainless steel manifolds into a racing 3-into-1 pipe, TIG-welded in titanium.\u003c\/li\u003e\n\u003cli\u003eGrid-O silencer in full titanium with visible TIG welding, low mounting.\u003c\/li\u003e\n\u003cli\u003e4,2 kg against 7,0 kg standard: 2,8 kg saved.\u003c\/li\u003e\n\u003cli\u003eNo catalytic converter, no pre-silencer box, no road approval.\u003c\/li\u003e\n\u003cli\u003eNot compatible with a centre stand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere This Sits in Spark's Range\u003c\/h2\u003e\u003cp\u003eSpark's own page walks through the family in order. First the Euro5+ systems: the Triade with three outlets, the Grid-O with a silenced box, the twin-outlet version with a MotoGP-style mesh. Then, in Spark's words, the racing and extreme proposal — this one.\u003c\/p\u003e\u003cp\u003eThe difference is what has been taken out. The homologated systems carry a catalytic converter and a stainless pre-silencer box, and those two components are what make the decibel figure legal. Here both are gone, replaced by a single titanium pipe running from the manifolds to the silencer.\u003c\/p\u003e\u003ch2\u003eThe Titanium Pipe\u003c\/h2\u003e\u003cp\u003eSpark describes it as a racing 3-into-1 TIG-welded pipe in titanium. Hand-welded titanium takes on heat colours across every seam as it is laid down, and Spark leaves them: no polish, no coating, nothing to hide how the joint was made.\u003c\/p\u003e\u003cp\u003eThe engineering behind it is the part Spark talks about more than the look. The company has been sizing manifolds for three-cylinder engines in Moto2 for years, and it applies the same approach here — diameters and lengths chosen for the CP3's torque delivery rather than for a peak number.\u003c\/p\u003e\u003ch2\u003eThe Moto2 Silencer\u003c\/h2\u003e\u003cp\u003eThe Grid-O on this system is the full titanium article with visible TIG welding — the same silencer Spark supplied to the machine that won the 2020 Moto2 World Championship. It mounts low, in the standard position.\u003c\/p\u003e\u003cp\u003eIts mesh end cap is the recognisable part: a large open outlet area spread across many small holes rather than one wide pipe.\u003c\/p\u003e\u003ch2\u003eTwo Restrictions to Settle First\u003c\/h2\u003e\u003cp\u003eSpark states both in capitals. This system is not recommended for road use and is intended for racing use only — there is no certificate and there will not be one. And it is not compatible with a centre stand: if your MT-09 or XSR 900 has one, it comes off and stays off.\u003c\/p\u003e\u003cp\u003eThe road-legal alternative on the same motorcycle is GYA8886TOM, which keeps the catalyst and the box and carries an EC certificate.\u003c\/p\u003e\u003ch2\u003eAlmost Three Kilos\u003c\/h2\u003e\u003cp\u003e7,0 kg standard against 4,2 fitted. Most of that comes from deleting the box and the converter, which are heavy and sit low and central; the rest is the titanium silencer replacing steel at the far end of the motorcycle.\u003c\/p\u003e\u003cp\u003eIf weight is the objective, the full titanium version of this same system is GYA8893T — the manifolds change material and the price rises accordingly.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eYamaha MT-09, 2021 to 2026, and XSR 900, 2022 to 2025. Spark does not list this system for the Tracer 9. The full titanium build is GYA8893T at 2.202 euro; the Euro5+ approved alternative is GYA8886TOM.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eNone. Spark states not recommended for road use, for racing use only. This system must not be fitted to a motorcycle ridden on public roads.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number: GYA8891T\u003c\/li\u003e\n\u003cli\u003eType: Full system, racing, low standard mounting\u003c\/li\u003e\n\u003cli\u003eSilencer design: Grid-O, full titanium, visible TIG welds\u003c\/li\u003e\n\u003cli\u003eManifolds: AISI 304 stainless steel\u003c\/li\u003e\n\u003cli\u003eMid section: racing 3-into-1 TIG-welded titanium pipe\u003c\/li\u003e\n\u003cli\u003eCatalytic converter: none\u003c\/li\u003e\n\u003cli\u003eWeight: 4,2 kg (standard system 7,0 kg)\u003c\/li\u003e\n\u003cli\u003eCentre stand: not compatible\u003c\/li\u003e\n\u003cli\u003eRoad approval: none — track use only\u003c\/li\u003e\n\u003cli\u003eFitment: Yamaha MT-09 (2021-2026), XSR 900 (2022-2025)\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":53616353542410,"sku":"GYA8891T","price":285800.0,"currency_code":"ETB","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/68304198e3daf_43d84a1c-5928-46e2-b58e-a496c79fe8b1.png?v=1788329285","url":"https:\/\/inter-pace.com\/en-et\/products\/spark-exhaust-grid-o-racing-full-system-yamaha-mt-09-2021","provider":"Inter-Pace","version":"1.0","type":"link"}