{"product_id":"spark-exhaust-titanium-racing-collector-ducati-monster-937","title":"Spark Exhaust Titanium Racing Collector De-Cat Ducati Monster 937 (2021-2025) GDU8527","description":"\u003cp\u003eThe catalytic converter on a Monster 937 is a large, heavy object hanging under the engine. Spark replaces the whole collector with half a kilo of titanium, and the two things that change are the mass and the sound.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTitanium racing collector for the Ducati Monster 937.\u003c\/li\u003e\n\u003cli\u003e0,5 kg — replaces the original catalytic collector.\u003c\/li\u003e\n\u003cli\u003eWorks with the original silencers and with Spark silencers.\u003c\/li\u003e\n\u003cli\u003eCombines with the titanium primary pipe GDU8526.\u003c\/li\u003e\n\u003cli\u003eDeeper, darker exhaust note.\u003c\/li\u003e\n\u003cli\u003eRacing part — Spark lists it as not approved.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eHalf a Kilo Where a Brick Used To Be\u003c\/h2\u003e\u003cp\u003eSpark does not publish a figure for the standard collector on this bike, so the honest comparison is not a subtraction — it is the description of what goes in: a titanium collector weighing 0,5 kg in place of an assembly built around a ceramic converter in a steel housing.\u003c\/p\u003e\u003cp\u003eAnyone who has had the original off the bike knows the difference without needing scales. It is bulky, it sits low, and it is the single heaviest item in the exhaust path.\u003c\/p\u003e\u003ch2\u003eThe Sound Is the Point\u003c\/h2\u003e\u003cp\u003eSpark says it plainly: this part gives the motorcycle a dark, deep voice. A catalyst is an acoustic damper as well as a chemical one, and taking it out changes the character of the L-twin more than a silencer swap does.\u003c\/p\u003e\u003cp\u003eThat is the reason most people buy this article, and it is worth being clear about it before spending 554 euro expecting a power figure — Spark quotes none for the collector on its own.\u003c\/p\u003e\u003ch2\u003eIt Does Not Force a Silencer Choice\u003c\/h2\u003e\u003cp\u003eThe collector is built to work with the silencers already on the motorcycle as well as with Spark's own. That makes it the cheapest single change that alters how the bike sounds, and it leaves the back of the machine looking untouched.\u003c\/p\u003e\u003cp\u003ePaired with the titanium primary pipe GDU8526 ahead of it, the whole section from cylinder head to silencer becomes titanium.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eDucati Monster 937, 2021 to 2025. Combines with the original silencers, with the Spark Dyno slip-ons GDU0839TOMC, GDU0839TOMN and GDU0839TOMR, and with the titanium primary pipe GDU8526.\u003c\/p\u003e\u003ch2\u003eRoad Approval\u003c\/h2\u003e\u003cp\u003eNone. Spark lists this collector as not approved. It removes the catalytic converter the motorcycle was type-approved with, so a machine fitted with it is for closed-course use only — regardless of which silencers are behind it.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number: GDU8527\u003c\/li\u003e\n\u003cli\u003eType: Racing collector, de-cat, modular\u003c\/li\u003e\n\u003cli\u003eMaterial: titanium\u003c\/li\u003e\n\u003cli\u003eWeight: 0,5 kg\u003c\/li\u003e\n\u003cli\u003eCombines with: original silencers or Spark silencers\u003c\/li\u003e\n\u003cli\u003eAlso combines with: titanium primary pipe GDU8526\u003c\/li\u003e\n\u003cli\u003eRoad approval: none, racing part\u003c\/li\u003e\n\u003cli\u003eFitment: Ducati Monster 937 (2021-2025)\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":53611615322378,"sku":"GDU8527","price":465.55,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/671205f2b4fc6_7e4a1808-e234-4a67-8cda-bce5dfe74212.png?v=1788265358","url":"https:\/\/inter-pace.com\/en-mz\/products\/spark-exhaust-titanium-racing-collector-ducati-monster-937","provider":"Inter-Pace","version":"1.0","type":"link"}