{"product_id":"sprint-filter-p08-air-filter-ducati-monster-821","title":"Sprint Filter P08 Air Filter for Road \u0026 Track – Ducati Monster 821 (2019–2020) CM61S","description":"\u003cp\u003eThe 821 is the Monster that has to do everything — enough engine to be genuinely quick, mild enough to commute on, and fitted with the electronics package the air-cooled bikes never had. That last point is the one that should decide your filter choice. A bike whose riding modes, traction control and fuelling all depend on knowing exactly how much air is entering the engine is a bike where you do not put anything tacky upstream of the sensor. The Sprint Filter P08 CM61S is a dry polyester element: no filter oil anywhere in the system.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDry polyester medium — never oiled, so nothing can settle on the air-mass sensor\u003c\/li\u003e\n\u003cli\u003eFiltering surface roughly double that of other performance filters\u003c\/li\u003e\n\u003cli\u003ePolyester threads from ø 22 microns, woven to a calibrated aperture\u003c\/li\u003e\n\u003cli\u003eDirect replacement in the standard airbox — no modification, no remap\u003c\/li\u003e\n\u003cli\u003eWashable and reusable; compressed air is the normal service\u003c\/li\u003e\n\u003cli\u003eTwo-year warranty from the date of purchase\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThe argument against oiled cotton\u003c\/h2\u003e\u003cp\u003eAn oiled gauze filter works by making dust stick to a tacky film, and it filters perfectly well. The problem is that oil migrates when the airbox runs warm and the bike is used hard, and the hot-film sensor sits directly downstream. A contaminated sensor does not fail cleanly — it reads low, the engine management works from a wrong number, and the resulting fault is maddening to trace because every individual component tests fine. Dry polyester removes the mechanism rather than reducing the odds.\u003c\/p\u003e\u003ch2\u003eTwo duty cycles, one filter\u003c\/h2\u003e\u003cp\u003eCommuting loads an element slowly and invisibly; a hard weekend ride puts it under high sustained flow. Twice the filtering surface handles both from a lower starting restriction, and because it washes, it returns to that starting point instead of drifting permanently away from it.\u003c\/p\u003e\u003ch2\u003eCare and cleaning\u003c\/h2\u003e\u003cp\u003eBlow it through from the clean side with compressed air, working outwards. For a deeper clean, wash in lukewarm water with a mild detergent, rinse until the water runs clear, and dry fully in air — never with heat, never with a flame. Refit dry. Sprint Filter's maintenance sheet is in the Downloads tab.\u003c\/p\u003e\u003ch2\u003eFitment \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eMade for the Ducati Monster 821 from 2019 to 2020. CM61S covers twenty-four Ducati models — the full list is in the Fitment tab.\u003c\/p\u003e","brand":"Sprint Filter","offers":[{"title":"Default Title","offer_id":53528297701642,"sku":"CM61S","price":79.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/CM61S.png?v=1787052066","url":"https:\/\/inter-pace.com\/en-mz\/products\/sprint-filter-p08-air-filter-ducati-monster-821","provider":"Inter-Pace","version":"1.0","type":"link"}