{"product_id":"spark-exhaust-grid-o-silencer-pair-ducati-panigale-v4","title":"Spark Exhaust Grid-O Silencer Pair Ducati Panigale V4 (2018-2024) GDU8839ST","description":"\u003cp\u003eBoth Grid-O silencers from Spark's underseat kits for the Panigale V4, sold as a pair. Spark lists this as a replacement part, which is the polite way of saying it is what you order after the bike went down or after a season of heat cycles left the packing tired.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePair of Grid-O titanium silencers for Spark's Panigale V4 underseat kits.\u003c\/li\u003e\n\u003cli\u003eSupplied as two, because on a 2-1-2 layout you never need one.\u003c\/li\u003e\n\u003cli\u003eMesh end caps and visible TIG weld seams — the Grid-O signature.\u003c\/li\u003e\n\u003cli\u003eTitanium sleeve, perforated inner tube and inner end cap.\u003c\/li\u003e\n\u003cli\u003eReplacement part: no link pipe, no collector, no hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSold in Pairs for a Reason\u003c\/h2\u003e\u003cp\u003eA 2-1-2 underseat system feeds two silencers from one collector. Replace only one and you have two cases with different packing density, different flow resistance and — over a session — a measurably uneven exhaust note. Spark sells them together because a matched pair is the only configuration that behaves predictably.\u003c\/p\u003e\u003cp\u003eIf one of yours is damaged and the other is a year old, replacing both is not upselling. It is the difference between a system that sounds like it left the factory and one that does not.\u003c\/p\u003e\u003ch2\u003eWhen Silencers Wear Out\u003c\/h2\u003e\u003cp\u003eRace silencers are consumables. The absorption packing inside compresses and degrades with heat and vibration, and a case that measured 105 dB when new will creep upward over a season of track days. That is why scrutineering catches bikes that passed the year before with the same exhaust fitted.\u003c\/p\u003e\u003cp\u003eVisible TIG seams, incidentally, make a damaged case easier to assess: a crack near a weld is obvious on a Grid-O in a way it is not on a polished silencer.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eFits Spark's 2-1-2 underseat kits for the Ducati Panigale V4, V4 S, V4 R (2018-2024) and the Streetfighter V4. The Dyno equivalent is GDU8847ST. These will not fit the lateral single-silencer layouts.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eNone. Competition silencers with no certificate of their own.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number: GDU8839ST\u003c\/li\u003e\n\u003cli\u003eType: Silencer pair, underseat\u003c\/li\u003e\n\u003cli\u003eDesign: Grid-O\u003c\/li\u003e\n\u003cli\u003eMaterial: Titanium, visible TIG welds\u003c\/li\u003e\n\u003cli\u003eQuantity: 2 silencers\u003c\/li\u003e\n\u003cli\u003eSupplied as: replacement part, no link pipe or hardware\u003c\/li\u003e\n\u003cli\u003eFitment: Spark 2-1-2 underseat kits for Ducati Panigale V4 \/ V4 S \/ V4 R \/ Streetfighter V4 (2018-2024)\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":53606159417610,"sku":"GDU8839ST","price":25333000.0,"currency_code":"VND","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/699426d2d0cf7_dfaf549c-5f65-4fea-8fcd-414a34fe6db5.png?v=1788192697","url":"https:\/\/inter-pace.com\/en-vn\/products\/spark-exhaust-grid-o-silencer-pair-ducati-panigale-v4","provider":"Inter-Pace","version":"1.0","type":"link"}