{"product_id":"air-filter-polini-big-evolution-28-55mm-straight","title":"Air Filter Polini Big Evolution 28 - 55mm straight","description":"\u003cp\u003eHigh-performance Polini Big Evolution air filter engineered for maximum airflow and engine responsiveness. \u003cbr\u003e\u003cbr\u003eDual-layer open-cell foam construction delivers superior intake surface area, enhancing cylinder filling and overall power delivery. The straight 55mm connection accommodates PWK carburetors 32–36mm, with included adapters (28\/35\/42\/46\/50\/55mm) ensuring compatibility across Dellorto, Mikuni, Keihin, Gurtner, Polini, and OEM carburetor platforms.\u003cbr\u003e\u003cbr\u003eOptimized for racing and high-performance applications where airflow efficiency directly impacts throttle response and acceleration. The expanded foam matrix reduces intake restriction while maintaining filtration integrity. Includes six adapter sizes for universal fitment. \u003cbr\u003e\u003cbr\u003eNote : Measure connection diameter at the carburetor; rubber mounts compress slightly during installation, so actual diameter may be marginally smaller than specified.\u003c\/p\u003e","brand":"POLINI","offers":[{"title":"Default Title","offer_id":57901934543183,"sku":"203.0160","price":36.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0918\/7626\/2223\/files\/MOPEDI.LV-2026-06-12T140853.145.jpg?v=1781262556","url":"https:\/\/mopedi.eu\/lt\/products\/air-filter-polini-big-evolution-28-55mm-straight","provider":"MOPEDI LATVIA","version":"1.0","type":"link"}